chore(deps): update dependency typescript to v7

Reviewed-on: #83

.github/workflows/build-test.yml

@@ -0,0 +1,58 @@
+name: Build Test
+
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Retrieve Server Install Action
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/action-server-install
+          ref: main
+          path: action-server-install
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install Server
+        uses: ./action-server-install
+        with:
+          install-php: 'false'
+          install-node: 'true'
+          php-version: '8.5'
+          node-version: '24'
+          server-path: './server'
+
+      - name: Install Mail Manager
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/mail_manager
+          ref: main
+          path: server/modules/mail_manager
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install People Manager
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/people_manager
+          ref: main
+          path: server/modules/people_manager
+          github-server-url: https://git.ktrix.dev
+
+      - name: Checkout Pull Request
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: ${{ github.repository }}
+          ref: ${{ github.event.pull_request.head.sha }}
+          path: server/modules/mail
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: server/modules/mail
+
+      - name: Build
+        run: npm run build
+        working-directory: server/modules/mail

.github/workflows/js-unit-tests.yml

@@ -0,0 +1,58 @@
+name: JS Unit Tests
+
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Retrieve Server Install Action
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/action-server-install
+          ref: main
+          path: action-server-install
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install Server
+        uses: ./action-server-install
+        with:
+          install-php: 'false'
+          install-node: 'true'
+          php-version: '8.5'
+          node-version: '24'
+          server-path: './server'
+
+      - name: Install Mail Manager
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/mail_manager
+          ref: main
+          path: server/modules/mail_manager
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install People Manager
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/people_manager
+          ref: main
+          path: server/modules/people_manager
+          github-server-url: https://git.ktrix.dev
+
+      - name: Checkout Pull Request
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: ${{ github.repository }}
+          ref: ${{ github.event.pull_request.head.sha }}
+          path: server/modules/mail
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: server/modules/mail
+
+      - name: Run tests
+        run: npm run test:unit
+        working-directory: server/modules/mail

.github/workflows/php-integration-tests.yml

@@ -0,0 +1,59 @@
+name: PHP Integration Tests
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Integration Tests
+    runs-on: ubuntu-latest
+    services:
+      mongo:
+        image: mongo:7
+        options: >-
+          --health-cmd "mongosh --quiet --eval \"db.adminCommand('ping')\""
+          --health-interval 5s
+          --health-timeout 5s
+          --health-retries 12
+
+    steps:
+      - name: Retrieve Server Install Action
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/action-server-install
+          ref: main
+          path: action-server-install
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install server
+        uses: ./action-server-install
+        with:
+          install-php: 'true'
+          php-version: '8.5'
+          server-path: './server'
+          database-uri: 'mongodb://mongo:27017/?tls=false'
+          database-name: 'ktrix_ci'
+          app-environment: 'test'
+
+      - name: Checkout module under test
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: ${{ github.repository }}
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
+          path: server/modules/mail
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install module dependencies
+        run: composer install --prefer-dist --no-progress
+        working-directory: server/modules/mail
+
+      - name: Install and enable module
+        working-directory: server
+        run: |
+          php bin/console module:install mail
+          php bin/console module:enable mail
+
+      - name: Run integration tests
+        working-directory: server/modules/mail
+        run: composer test:integration

.github/workflows/php-unit-tests.yml

@@ -0,0 +1,42 @@
+name: PHP Unit Tests
+
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Retrieve Server Install Action
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: Nodarx/action-server-install
+          ref: main
+          path: action-server-install
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install Server
+        uses: ./action-server-install
+        with:
+          install-php: 'true'
+          install-node: 'false'
+          php-version: '8.5'
+          node-version: '24'
+          server-path: './server'
+
+      - name: Checkout Pull Request
+        uses: actions/checkout@v6.0.2
+        with:
+          repository: ${{ github.repository }}
+          ref: ${{ github.event.pull_request.head.sha }}
+          path: server/modules/mail
+          github-server-url: https://git.ktrix.dev
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+        working-directory: server/modules/mail
+
+      - name: Run tests
+        run: composer test:unit
+        working-directory: server/modules/mail

.github/workflows/renovate.yml

@@ -0,0 +1,41 @@
+name: Renovate
+
+on:
+  schedule:
+    - cron: "0 3 * * *"
+  workflow_dispatch:
+
+jobs:
+  renovate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6.0.2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v6.2.0
+        with:
+          node-version: 24
+          cache: npm
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.5'
+          tools: composer:v2
+
+      - name: Install Renovate
+        run: |
+          npm install --global --no-audit --fund=false \
+            --prefix "${{ runner.temp }}/renovate-npm" \
+            --cache "${{ runner.temp }}/renovate-npm-cache" \
+            renovate
+          "${{ runner.temp }}/renovate-npm/bin/renovate" --version
+
+      - name: Run Renovate
+        env:
+          RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
+          RENOVATE_PLATFORM: gitea
+          RENOVATE_ENDPOINT: https://git.ktrix.dev/api/v1
+        run: |
+          "${{ runner.temp }}/renovate-npm/bin/renovate" ${{ gitea.repository }}

.gitignore

@@ -12,12 +12,10 @@ node_modules/
 /static/
 
 # Backend development
+/vendor/
 /lib/vendor/
 coverage/
-phpunit.xml.cache
-.phpunit.result.cache
-.php-cs-fixer.cache
-.phpstan.cache
+*.cache
 .phpactor/
 
 # Editors

composer.json

@@ -9,6 +9,18 @@
         }
     },
     "require": {
-        "php": ">=8.2"
+        "php": ">=8.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^12.0"
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "KTXT\\Mail\\Tests\\": "tests/php/"
+        }
+    },
+    "scripts": {
+        "test:unit": "phpunit --configuration tests/php/phpunit.xml --testsuite \"Unit Tests\" --colors=always --testdox",
+        "test:integration": "phpunit --configuration tests/php/phpunit.xml --testsuite \"Integration Tests\" --colors=always --testdox"
     }
 }

lib/CompositionManager.php

@@ -0,0 +1,396 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXM\Mail;
+
+use InvalidArgumentException;
+use KTXF\Mail\Object\Address;
+use KTXF\Mail\Object\AddressInterface;
+use KTXF\Mail\Object\MessagePart;
+use KTXF\Mail\Object\MessagePropertiesMutableInterface;
+use KTXF\Mail\Service\ServiceEntitySubmitInterface;
+use KTXF\Mail\Submission\EntitySubmitResult;
+use KTXF\Resource\Identifier\EntityIdentifierInterface;
+use KTXF\Resource\Identifier\ResourceIdentifier;
+use KTXF\Utile\UUID;
+use KTXM\Mail\Stores\CompositionStore;
+use KTXM\MailManager\Manager as MailManager;
+
+class CompositionManager {
+
+    public function __construct(
+        private readonly CompositionStore $compositionStore,
+        private readonly MailManager $mailManager,
+    ) {}
+
+    public function stage(string $tenantId, string $userId, string $identifier, string $action, array $sender, array $message, ?string $source = null): array {
+        if ($identifier === '') {
+            throw new InvalidArgumentException('Draft identifier is required');
+        }
+
+        $snapshot = [
+            'identifier' => $identifier,
+            'action' => $action,
+            'source' => $source,
+            'revision' => 1,
+            'disposition' => 'staged',
+            'sender' => $sender,
+            'message' => $message,
+            'attachments' => [],
+        ];
+
+        $this->compositionStore->compositionSave($tenantId, $userId, $identifier, $snapshot);
+
+        if ($action === 'forward') {
+            $sourceIndentifier = ResourceIdentifier::fromString($source);
+            if ($sourceIndentifier === null) {
+                throw new InvalidArgumentException('Invalid source identifier');
+            }
+            $entities = $this->mailManager->entityFetchBulk($tenantId, $userId, $sourceIndentifier);
+            if (count($entities) === 0) {
+                throw new InvalidArgumentException('Source message not found');
+            }
+            // retrieve the attachments from the source message
+            $attachments = reset($entities)->getProperties()->getAttachments();
+            // For each attachment, we download the content and stage it in the composition store
+            foreach ($attachments as $attachment) {
+                $contentId = $attachment->getContentId();
+                $isInline = $attachment->getDisposition() === 'inline';
+                // target part
+                $targetPart = [
+                    'partId' => $attachment->getId(),
+                    'blobId' => $attachment->getBlobId(),
+                    'cid' => $contentId,
+                    'cId' => $contentId,
+                ];
+                // retrieve the attachment content as a stream
+                $data = $this->mailManager->entityDownload($tenantId, $userId, $sourceIndentifier, $targetPart);
+                // stage the attachment in the composition store
+                $meta = $this->compositionStore->attachmentStageFromStream(
+                    tenantId: $tenantId,
+                    userId: $userId,
+                    compositionId: $identifier,
+                    attachmentId: UUID::v4(),
+                    data: $data,
+                );
+                // supplement the attachment metadata with source information
+                $meta['origin'] = 'source';
+                $meta['source'] = $source;
+                $meta['partId'] = $attachment->getId();
+                $meta['blobId'] = $attachment->getBlobId();
+                $meta['cid'] = $contentId;
+                $meta['contentId'] = $contentId;
+                $meta['disposition'] = $attachment->getDisposition();
+                $meta['inline'] = $isInline;
+                $meta['name'] = $attachment->getName() ?? $meta['name'];
+                $meta['type'] = $attachment->getType() ?? $meta['type'];
+                $meta['size'] = $attachment->getSize() ?? $meta['size'];
+                $snapshot['attachments'][$meta['identifier']] = $meta;
+            }
+            // update the snapshot with the staged attachments
+            $this->compositionStore->compositionSave($tenantId, $userId, $identifier, $snapshot);
+        }
+
+        return $snapshot;
+    }
+
+    public function patch(string $tenantId, string $userId, string $identifier, array $data): array {
+        $composed = $this->compositionStore->compositionFetch($tenantId, $userId, $identifier);
+
+        if ($composed === null) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'composition_not_found',
+                'message' => 'Composition not found',
+            ];
+            return $result;
+        }
+
+        if (!isset($data['revision']) || !is_int($data['revision']) || $data['revision'] < $composed['revision']) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'revision_mismatch',
+                'message' => 'Revision mismatch',
+                'currentRevision' => $composed['revision'],
+            ];
+            return $result;
+        }
+
+        // Apply the patch data to the composed message
+        $composed['revision'] = $data['revision'];
+        $composed['sender'] = $data['sender'] ?? [];
+        $composed['message'] = $data['message'] ?? [];
+
+        $this->compositionStore->compositionSave($tenantId, $userId, $identifier, $composed);
+
+        $result = [
+            'identifier' => $identifier,
+            'disposition' => 'patched',
+        ];
+        return $result;
+    }
+
+    public function discard(string $tenantId, string $userId, string $identifier): array {
+        return [
+            'identifier' => $identifier,
+            'disposition' => $this->compositionStore->compositionDiscard($tenantId, $userId, $identifier),
+        ];
+    }
+
+    public function send(string $tenantId, string $userId, string $identifier, array $sender, array $message, array $attachments): array {
+        $composed = $this->compositionStore->compositionFetch($tenantId, $userId, $identifier);
+
+        if ($composed === null) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'composition_not_found',
+                'message' => 'Composition not found',
+            ];
+            return $result;
+        }
+
+        // store the message and sender information before sending
+        $composed['sender'] = $sender;
+        $composed['message'] = $message;
+        $this->compositionStore->compositionSave($tenantId, $userId, $identifier, $composed);
+
+        // validate the sender address before attempting to send the message
+        if ($sender['address'] === '' || !filter_var($sender['address'], FILTER_VALIDATE_EMAIL)) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'composition_invalid_sender',
+                'message' => 'Invalid sender address',
+            ];
+            return $result;
+        }
+        $senderAddress = $sender['address'];
+        $senderObject = Address::fromArray($sender);
+
+        // resolve submit-capable service for sender
+        $service = $this->mailManager->serviceFindByAddress($tenantId, $userId, $senderAddress);
+        if ($service === null || $service->getEnabled() === false) {
+            return [
+                'disposition' => 'error',
+                'error' => [
+                    'type' => 'service_not_found',
+                    'message' => "Service not found for sender '$senderAddress' or service is disabled",
+                ],
+            ];
+        }
+        if ($service instanceof ServiceEntitySubmitInterface === false) {
+            return [
+                'disposition' => 'error',
+                'error' => [
+                    'type' => 'service_not_supported',
+                    'message' => "Service '{$service->identifier()}' does not support entity submission",
+                ],
+            ];
+        }
+
+        $source = null;
+        $properties = $this->buildMessageProperties(
+            service: $service,
+            sender: $senderObject,
+            message: $message,
+            attachments: $attachments,
+            composed: $composed,
+            tenantId: $tenantId,
+            userId: $userId,
+            compositionId: $identifier,
+        );
+
+        $sendResult = $service->entitySubmit($senderObject, $source, $properties);
+
+        if ($sendResult->disposition === EntitySubmitResult::DISPOSITION_ERROR) {
+            return [
+                'identifier' => $identifier,
+                'disposition' => 'error',
+                'error' => [
+                    'type' => 'service_submission_error',
+                    'message' => $sendResult->errorMessage ?? 'An unknown error occurred during submission',
+                ],
+            ];
+        }
+
+        return [
+            'identifier' => $identifier,
+            'disposition' => 'sent'
+        ];
+    }
+
+    private function buildMessageProperties(
+        ServiceEntitySubmitInterface $service,
+        AddressInterface $sender,
+        array $message,
+        array $attachments,
+        array $composed,
+        string $tenantId,
+        string $userId,
+        string $compositionId,
+    ): MessagePropertiesMutableInterface {
+        $properties = $service->entityFresh()->getProperties();
+        $bodyTextPlain = isset($message['body']['text']) ? (string)$message['body']['text'] : '';
+        $bodyTextHtml = isset($message['body']['html']) ? (string)$message['body']['html'] : '';
+
+        $properties->setFrom($sender);
+
+        $to = $this->mapAddresses($message['to'] ?? []);
+        if ($to !== []) {
+            $properties->setTo(...$to);
+        }
+
+        $cc = $this->mapAddresses($message['cc'] ?? []);
+        if ($cc !== []) {
+            $properties->setCc(...$cc);
+        }
+
+        $bcc = $this->mapAddresses($message['bcc'] ?? []);
+        if ($bcc !== []) {
+            $properties->setBcc(...$bcc);
+        }
+
+        $replyTo = $this->mapAddresses($message['replyTo'] ?? []);
+        if ($replyTo !== []) {
+            $properties->setReplyTo(...$replyTo);
+        }
+
+        $properties->setSubject((string)($message['subject'] ?? ''));
+        $properties->setBodyTextPlain($bodyTextPlain);
+        $properties->setBodyTextHtml($bodyTextHtml);
+
+        if (isset($message['flags']) && is_array($message['flags'])) {
+            $properties->setFlags($message['flags']);
+        }
+
+        $attachmentObjects = [];
+        foreach ($attachments as $attachment) {
+            if (!isset($attachment['identifier']) || !is_string($attachment['identifier']) || $attachment['identifier'] === '') {
+                continue;
+            }
+
+            $composedAttachment = $composed['attachments'][$attachment['identifier']] ?? null;
+            if (!is_array($composedAttachment)) {
+                continue;
+            }
+
+            $attachmentObjects[] = MessagePart::fromArray([
+                'partId' => $attachment['identifier'],
+                'blobId' => $attachment['blobId'] ?? $composedAttachment['blobId'] ?? null,
+                'size' => $composedAttachment['size'] ?? null,
+                'name' => $composedAttachment['name'] ?? 'unknown.bin',
+                'type' => $composedAttachment['type'] ?? 'application/octet-stream',
+                'disposition' => (($attachment['inline'] ?? $composedAttachment['inline'] ?? false) === true) ? 'inline' : 'attachment',
+                'content' => $this->compositionStore->attachmentFetchData($tenantId, $userId, $compositionId, $attachment['identifier']),
+                'cid' => $attachment['contentId'] ?? $attachment['cid'] ?? $composedAttachment['contentId'] ?? $composedAttachment['cid'] ?? null,
+            ]);
+        }
+
+        if ($attachmentObjects !== []) {
+            $properties->setAttachments(...$attachmentObjects);
+        }
+
+        return $properties;
+    }
+
+    /**
+     * @param array<int,array|string> $entries
+     * @return array<int,Address>
+     */
+    private function mapAddresses(array $entries): array {
+        $addresses = [];
+
+        foreach ($entries as $entry) {
+            if (is_array($entry)) {
+                $address = Address::fromArray($entry);
+                if ($address->getAddress() !== '') {
+                    $addresses[] = $address;
+                }
+                continue;
+            }
+
+            if (is_string($entry) && $entry !== '') {
+                $address = Address::fromString($entry);
+                if ($address->getAddress() !== '') {
+                    $addresses[] = $address;
+                }
+            }
+        }
+
+        return $addresses;
+    }
+    
+    public function attachmentAdd(string $tenantId, string $userId, string $composition, array ...$attachments): array {
+        $result = [
+            'composition' => $composition,
+            'attachments' => [],
+        ];
+        
+        $composed = $this->compositionStore->compositionFetch($tenantId, $userId, $composition);
+        if ($composed === null) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'composition_not_found',
+                'message' => 'Composition not found',
+            ];
+            return $result;
+        }
+
+        foreach ($attachments as $attachment) {
+            if (!isset($attachment['identifier']) || !is_string($attachment['identifier']) || $attachment['identifier'] === '') {
+                $identifier = UUID::v4();
+            } else {
+                $identifier = $attachment['identifier'];
+            }
+
+            $meta = $this->compositionStore->attachmentStageFromBase64(
+                tenantId: $tenantId,
+                userId: $userId,
+                compositionId: $composition,
+                attachmentId: $identifier,
+                name: $attachment['name'] ?? 'unknown.bin',
+                type: $attachment['type'] ?? 'application/octet-stream',
+                data: $attachment['data'] ?? '',
+            );
+            $meta['origin'] = 'upload';
+            $composed['attachments'][$meta['identifier']] = $meta;
+        }
+
+        $this->compositionStore->compositionSave($tenantId, $userId, $composition, $composed);
+        
+        $result['disposition'] = 'added';
+        $result['attachments'] = $composed['attachments'];
+        return $result;
+    }
+
+    public function attachmentRemove(string $tenantId, string $userId, string $composition, string $identifier): array {
+        $result = [
+            'composition' => $composition,
+            'identifier' => $identifier,
+        ];
+        
+        $composed = $this->compositionStore->compositionFetch($tenantId, $userId, $composition);
+        if ($composed === null) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'composition_not_found',
+                'message' => 'Composition not found',
+            ];
+            return $result;
+        }
+        if (!isset($composed['attachments'][$identifier])) {
+            $result['disposition'] = 'error';
+            $result['error'] = [
+                'type' => 'attachment_not_found',
+                'message' => 'Attachment not found',
+            ];
+            return $result;
+        }
+
+        unset($composed['attachments'][$identifier]);
+        $this->compositionStore->compositionSave($tenantId, $userId, $composition, $composed);
+
+        $result['disposition'] = 'removed';
+        return $result;
+    }
+}

lib/Controllers/CompositionController.php

@@ -0,0 +1,157 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXM\Mail\Controllers;
+
+use InvalidArgumentException;
+use KTXC\Http\Response\JsonResponse;
+use KTXC\Http\Response\Response;
+use KTXC\SessionIdentity;
+use KTXC\SessionTenant;
+use KTXF\Controller\ControllerAbstract;
+use KTXF\Routing\Attributes\AuthenticatedRoute;
+use KTXM\Mail\CompositionManager;
+use Psr\Log\LoggerInterface;
+use Throwable;
+
+final class CompositionController extends ControllerAbstract {
+
+    public function __construct(
+        private readonly SessionTenant $tenantIdentity,
+        private readonly SessionIdentity $userIdentity,
+        private readonly CompositionManager $compositionManager,
+        private readonly LoggerInterface $logger,
+    ) {}
+
+    #[AuthenticatedRoute('/compose/v1', name: 'mail.compose.v1', methods: ['POST'])]
+    public function index(
+        int $version,
+        string $transaction,
+        string|null $operation = null,
+        array|null $data = null,
+    ): Response {
+        $tenantId = $this->tenantIdentity->identifier();
+        $userId = $this->userIdentity->identifier();
+
+        try {
+            if ($operation === null) {
+                throw new InvalidArgumentException('Operation must be provided');
+            }
+
+            $result = match ($operation) {
+                'stage' => $this->stage($tenantId, $userId, $data),
+                'patch' => $this->patch($tenantId, $userId, $data),
+                'discard' => $this->discard($tenantId, $userId, $data),
+                'send' => $this->send($tenantId, $userId, $data),
+                'attachment.add' => $this->attachmentAdd($tenantId, $userId, $data),
+                'attachment.remove' => $this->attachmentRemove($tenantId, $userId, $data),
+                default => throw new InvalidArgumentException('Invalid operation: ' . $operation),
+            };
+
+            return new JsonResponse([
+                'version' => $version,
+                'transaction' => $transaction,
+                'operation' => $operation,
+                'status' => 'success',
+                'data' => $result,
+            ], JsonResponse::HTTP_OK);
+        } catch (Throwable $throwable) {
+            $this->logger->error('Mail draft request failed', ['exception' => $throwable]);
+
+            return new JsonResponse([
+                'version' => $version,
+                'transaction' => $transaction,
+                'operation' => $operation,
+                'status' => 'error',
+                'data' => [
+                    'code' => $throwable->getCode(),
+                    'message' => $throwable->getMessage(),
+                ],
+            ], JsonResponse::HTTP_INTERNAL_SERVER_ERROR);
+        }
+    }
+
+    private function stage(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['identifier']) || !is_string($data['identifier']) || $data['identifier'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: identifier must be a non-empty string');
+        }
+        if (!isset($data['action']) || !is_string($data['action'])) {
+            throw new InvalidArgumentException('Invalid parameter: action must be a string');
+        }
+        if (!in_array($data['action'], ['fresh', 'reply', 'forward'], true)) {
+            throw new InvalidArgumentException('Invalid parameter: action must be one of fresh, reply, forward');
+        }
+        if (!isset($data['sender']) || !is_array($data['sender'])) {
+            throw new InvalidArgumentException('Invalid parameter: sender must be an array');
+        }
+        if (!isset($data['message']) || !is_array($data['message'])) {
+            throw new InvalidArgumentException('Invalid parameter: message must be an array');
+        }
+        if (($data['action'] === 'reply' || $data['action'] === 'forward') && (!isset($data['source']) || !is_string($data['source']) || $data['source'] === '')) {
+            throw new InvalidArgumentException('Invalid parameter: source must be a non-empty string for reply or forward action');
+        }
+
+        return $this->compositionManager->stage($tenantId, $userId, $data['identifier'], $data['action'], $data['sender'], $data['message'], $data['source'] ?? null);
+    }
+
+    private function patch(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['identifier']) || !is_string($data['identifier']) || $data['identifier'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: identifier must be a non-empty string');
+        }
+        if (!isset($data['sender']) || !is_array($data['sender'])) {
+            throw new InvalidArgumentException('Invalid parameter: sender must be an array');
+        }
+        if (!isset($data['message']) || !is_array($data['message'])) {
+            throw new InvalidArgumentException('Invalid parameter: message must be an array');
+        }
+
+        return $this->compositionManager->patch($tenantId, $userId, $data['identifier'], $data);
+    }
+    private function discard(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['identifier']) || !is_string($data['identifier']) || $data['identifier'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: identifier must be a non-empty string');
+        }
+
+        return $this->compositionManager->discard($tenantId, $userId, $data['identifier']);
+    }
+
+    private function send(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['identifier']) || !is_string($data['identifier']) || $data['identifier'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: identifier must be a non-empty string');
+        }
+        if (!isset($data['sender']) || !is_array($data['sender'])) {
+            throw new InvalidArgumentException('Invalid parameter: sender must be an array');
+        }
+        if (!isset($data['message']) || !is_array($data['message'])) {
+            throw new InvalidArgumentException('Invalid parameter: message must be an array');
+        }
+        if (!isset($data['attachments']) || !is_array($data['attachments'])) {
+            throw new InvalidArgumentException('Invalid parameter: attachments must be an array');
+        }
+
+        return $this->compositionManager->send($tenantId, $userId, $data['identifier'], $data['sender'], $data['message'], $data['attachments']);
+    }
+
+    private function attachmentAdd(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['composition']) || !is_string($data['composition']) || $data['composition'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: composition must be a non-empty string');
+        }
+        if (!isset($data['attachments']) || !is_array($data['attachments'])) {
+            throw new InvalidArgumentException('Invalid parameter: attachments must be an array');
+        }
+
+        return $this->compositionManager->attachmentAdd($tenantId, $userId, $data['composition'], ...$data['attachments']);
+    }
+
+    private function attachmentRemove(string $tenantId, string $userId, array $data): array {
+        if (!isset($data['composition']) || !is_string($data['composition']) || $data['composition'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: composition must be a non-empty string');
+        }
+        if (!isset($data['identifier']) || !is_string($data['identifier']) || $data['identifier'] === '') {
+            throw new InvalidArgumentException('Invalid parameter: identifier must be a non-empty string');
+        }
+
+        return $this->compositionManager->attachmentRemove($tenantId, $userId, $data['composition'], $data['identifier']);
+    }
+}

lib/Stores/CompositionStore.php

@@ -0,0 +1,176 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXM\Mail\Stores;
+
+use DI\Attribute\Inject;
+use KTXF\Resource\BinaryResource;
+
+final class CompositionStore {
+
+    private const COMPOSITION_FILENAME = 'composition.json';
+
+    private string $storagePath;
+
+    public function __construct(
+        #[Inject('rootDir')] private readonly string $rootDir,
+    ) {
+        $this->storagePath = $this->rootDir . '/var/cache/mail/composer';
+    }
+
+    public function compositionFetch(string $tenantId, string $userId, string $draftId): ?array {
+        $draftDir = $this->draftDir($tenantId, $userId, $draftId);
+        if (!is_dir($draftDir)) {
+            return null;
+        }
+
+        $messagePath = $draftDir . '/' . self::COMPOSITION_FILENAME;
+        if (!file_exists($messagePath)) {
+            return null;
+        }
+
+        $decoded = json_decode((string)file_get_contents($messagePath), true);
+        return is_array($decoded) ? $decoded : null;
+    }
+
+    public function compositionSave(string $tenantId, string $userId, string $draftId, array $snapshot): array {
+        $draftDir = $this->draftDir($tenantId, $userId, $draftId);
+        if (!is_dir($draftDir)) {
+            mkdir($draftDir, 0755, true);
+        }
+
+        file_put_contents($draftDir . '/' . self::COMPOSITION_FILENAME, json_encode($snapshot, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+        return $snapshot;
+    }
+
+    public function compositionDiscard(string $tenantId, string $userId, string $draftId): bool {
+        $draftDir = $this->draftDir($tenantId, $userId, $draftId);
+        if (!is_dir($draftDir)) {
+            return false;
+        }
+
+        $this->deleteDir($draftDir);
+        return true;
+    }
+
+    public function attachmentStageFromStream(
+        string $tenantId,
+        string $userId,
+        string $compositionId,
+        string $attachmentId,
+        BinaryResource $data,
+    ): array {
+        $attachmentDir = $this->attachmentDir($tenantId, $userId, $compositionId);
+        if (!is_dir($attachmentDir)) {
+            mkdir($attachmentDir, 0755, true);
+        }
+
+        $contentPath = $attachmentDir . '/' . $attachmentId . '.blob';
+        $handle = fopen($contentPath, 'wb');
+        $size = 0;
+
+        foreach ($data->stream() as $chunk) {
+            $chunkString = (string)$chunk;
+            $size += strlen($chunkString);
+            fwrite($handle, $chunkString);
+        }
+
+        fclose($handle);
+
+        $meta = [
+            'identifier' => $attachmentId,
+            'composition' => $compositionId,
+            'name' => $data->filename(),
+            'type' => $data->mimeType(),
+            'size' => $size,
+        ];
+
+        file_put_contents($attachmentDir . '/' . $attachmentId . '.meta', json_encode($meta, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+        return $meta;
+    }
+
+    public function attachmentStageFromBase64(
+        string $tenantId,
+        string $userId,
+        string $compositionId,
+        string $attachmentId,
+        string $name,
+        string $type,
+        string $data,
+    ): array {
+        $decoded = base64_decode($data, true);
+        if ($decoded === false) {
+            throw new \InvalidArgumentException('Attachment payload is not valid base64');
+        }
+
+        $attachmentDir = $this->attachmentDir($tenantId, $userId, $compositionId);
+        if (!is_dir($attachmentDir)) {
+            mkdir($attachmentDir, 0755, true);
+        }
+
+        file_put_contents($attachmentDir . '/' . $attachmentId . '.blob', $decoded);
+
+        $metadata = [
+            'identifier' => $attachmentId,
+            'composition' => $compositionId,
+            'name' => $name,
+            'type' => $type,
+            'size' => strlen($decoded),
+        ];
+
+        file_put_contents($attachmentDir . '/' . $attachmentId . '.meta', json_encode($metadata, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+        return $metadata;
+    }
+
+    public function attachmentFetchData(string $tenantId, string $userId, string $compositionId, string $attachmentId): ?string {
+        $path = $this->attachmentDir($tenantId, $userId, $compositionId) . '/' . $attachmentId . '.blob';
+        if (!file_exists($path)) {
+            return null;
+        }
+
+        return file_get_contents($path) ?: null;
+    }
+
+    public function fetchAttachmentMeta(string $tenantId, string $userId, string $compositionId, string $attachmentId): ?array {
+        $path = $this->attachmentDir($tenantId, $userId, $compositionId) . '/' . $attachmentId . '.meta';
+        if (!file_exists($path)) {
+            return null;
+        }
+
+        $decoded = json_decode((string)file_get_contents($path), true);
+        return is_array($decoded) ? $decoded : null;
+    }
+
+    private function attachmentDir(string $tenantId, string $userId, string $draftId): string {
+        return $this->draftDir($tenantId, $userId, $draftId) . '/attachments';
+    }
+
+    private function draftDir(string $tenantId, string $userId, string $draftId): string {
+        return $this->storagePath . '/' . $tenantId . '/' . $userId . '/' . $draftId;
+    }
+
+    private function deleteDir(string $path): void {
+        if (!is_dir($path)) {
+            return;
+        }
+
+        foreach (scandir($path) ?: [] as $entry) {
+            if ($entry === '.' || $entry === '..') {
+                continue;
+            }
+
+            $child = $path . '/' . $entry;
+            if (is_dir($child)) {
+                $this->deleteDir($child);
+                continue;
+            }
+
+            unlink($child);
+        }
+
+        rmdir($path);
+    }
+}

package.json

@@ -11,25 +11,33 @@
     "dev": "vite build --mode development --config vite.config.ts",
     "watch": "vite build --mode development --watch --config vite.config.ts",
     "typecheck": "vue-tsc --noEmit",
-    "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore"
+    "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore",
+    "test": "vitest run --config tests/js/vitest.config.ts",
+    "test:unit": "vitest run --config tests/js/vitest.config.ts",
+    "test:watch": "vitest watch --config tests/js/vitest.config.ts",
+    "test:coverage": "vitest run --coverage --config tests/js/vitest.config.ts"
   },
   "dependencies": {
-    "@tiptap/vue-3": "^2.1.13",
-    "@tiptap/starter-kit": "^2.1.13",
-    "@tiptap/extension-link": "^2.1.13",
-    "@tiptap/extension-placeholder": "^2.1.13",
-    "@tiptap/extension-text-align": "^2.1.13",
-    "@tiptap/extension-underline": "^2.1.13",
+    "@tiptap/vue-3": "^3.0.0",
+    "@tiptap/starter-kit": "^3.0.0",
+    "@tiptap/extension-link": "^3.0.0",
+    "@tiptap/extension-placeholder": "^3.0.0",
+    "@tiptap/extension-text-align": "^3.0.0",
+    "@tiptap/extension-underline": "^3.0.0",
     "vue": "^3.4.0",
-    "vue-router": "^4.2.5",
-    "pinia": "^2.1.7",
-    "vuetify": "^3.5.0"
+    "vue-router": "^5.0.0",
+    "pinia": "^3.0.0",
+    "vuetify": "^4.0.0"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "^5.0.0",
-    "@vue/tsconfig": "^0.5.0",
-    "typescript": "^5.3.0",
-    "vite": "^5.0.0",
-    "vue-tsc": "^1.8.27"
+    "@vitejs/plugin-vue": "^6.0.0",
+    "@vue/tsconfig": "^0.9.0",
+    "typescript": "~7.0.0",
+    "vite": "^8.0.0",
+    "vue-tsc": "^3.0.0",
+    "@vitest/coverage-v8": "^4.1.6",
+    "@vue/test-utils": "^2.4.10",
+    "jsdom": "^29.1.1",
+    "vitest": "^4.1.6"
   }
 }

renovate.json

@@ -1,3 +1,10 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended"],
+  "enabledManagers": ["npm", "composer", "github-actions"],
+  "timezone": "UTC",
+  "schedule": ["* 0-3 * * *"],
+  "dependencyDashboard": true,
+  "prConcurrentLimit": 5,
+  "prHourlyLimit": 2
 }

src/components/CreateFolderDialog.vue

@@ -1,7 +1,5 @@
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
-import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
-import { CollectionPropertiesObject } from '@MailManager/models/collection'
 import type { CollectionObject } from '@MailManager/models/collection'
 import type { ServiceObject } from '@MailManager/models'
 
@@ -9,28 +7,27 @@ import type { ServiceObject } from '@MailManager/models'
 interface Props {
   modelValue: boolean
   service: ServiceObject
-  parentFolder?: CollectionObject | null
-  allFolders?: CollectionObject[]
+  parentFolderLabel?: string
+  validateName?: (name: string) => string[]
+  loading?: boolean
+  errorMessage?: string
 }
 
 const props = withDefaults(defineProps<Props>(), {
-  parentFolder: null,
-  allFolders: () => []
+  parentFolderLabel: 'Root',
+  validateName: () => [],
+  loading: false,
+  errorMessage: '',
 })
 
 // Emits
 const emit = defineEmits<{
   'update:modelValue': [value: boolean]
-  'created': [folder: CollectionObject]
+  confirm: [folderName: string]
 }>()
 
-// Store
-const collectionsStore = useCollectionsStore()
-
 // Form state
 const folderName = ref('')
-const loading = ref(false)
-const errorMessage = ref('')
 const validationErrors = ref<string[]>([])
 
 // Computed
@@ -39,67 +36,13 @@ const dialogValue = computed({
   set: (value: boolean) => emit('update:modelValue', value)
 })
 
-const parentFolderLabel = computed(() => {
-  if (!props.parentFolder) return 'Root'
-  return props.parentFolder.properties.label
-})
-
 const isValid = computed(() => {
   return folderName.value.trim().length > 0 && validationErrors.value.length === 0
 })
 
-// Validation functions
-const validateFolderName = (name: string): string[] => {
-  const errors: string[] = []
-  
-  if (!name || name.trim().length === 0) {
-    errors.push('Folder name is required')
-    return errors
-  }
-  
-  if (name.length > 255) {
-    errors.push('Folder name too long (max 255 characters)')
-  }
-  
-  // No special characters that might cause issues
-  if (/[<>:"|?*\x00-\x1F]/.test(name)) {
-    errors.push('Folder name contains invalid characters')
-  }
-  
-  // Provider-specific rules
-  if (props.service.provider === 'imap' && /[\/\\]/.test(name)) {
-    errors.push('IMAP folder names cannot contain / or \\')
-  }
-  
-  // Leading/trailing spaces
-  if (name !== name.trim()) {
-    errors.push('Folder name cannot have leading or trailing spaces')
-  }
-  
-  return errors
-}
-
-const checkDuplicateName = (name: string): boolean => {
-  const parentId = props.parentFolder?.identifier ?? null
-  
-  return props.allFolders.some(f => 
-    f.properties.label === name &&
-    String(f.collection) === String(parentId) &&
-    String(f.service) === String(props.service.identifier)
-  )
-}
-
 // Watch folder name for validation
 watch(folderName, (newName) => {
-  errorMessage.value = ''
-  validationErrors.value = validateFolderName(newName)
-  
-  // Check for duplicates only if no other validation errors
-  if (validationErrors.value.length === 0 && newName.trim().length > 0) {
-    if (checkDuplicateName(newName)) {
-      validationErrors.value.push('A folder with this name already exists in this location')
-    }
-  }
+  validationErrors.value = props.validateName(newName)
 })
 
 // Reset form when dialog opens/closes
@@ -111,59 +54,25 @@ watch(dialogValue, (isOpen) => {
 
 const resetForm = () => {
   folderName.value = ''
-  errorMessage.value = ''
   validationErrors.value = []
-  loading.value = false
 }
 
 const handleCreate = async () => {
-  // Final validation
-  const errors = validateFolderName(folderName.value)
+  const errors = props.validateName(folderName.value)
+
   if (errors.length > 0) {
     validationErrors.value = errors
     return
   }
   
-  if (checkDuplicateName(folderName.value)) {
-    validationErrors.value = ['A folder with this name already exists in this location']
-    return
-  }
-  
-  loading.value = true
-  errorMessage.value = ''
-  
-  try {
-    // Create properties object
-    const properties = new CollectionPropertiesObject()
-    properties.label = folderName.value.trim()
-    properties.rank = 0
-    properties.subscribed = true
-    
-    // Create the collection
-    const newFolder = await collectionsStore.create(
-      props.service.provider,
-      props.service.identifier as string | number,
-      props.parentFolder?.identifier ?? null,
-      properties
-    )
-    
-    // Success!
-    emit('created', newFolder)
-    dialogValue.value = false
-    resetForm()
-    
-  } catch (error: any) {
-    console.error('[CreateFolderDialog] Failed to create folder:', error)
-    errorMessage.value = error.message || 'Failed to create folder. Please try again.'
-  } finally {
-    loading.value = false
-  }
+  emit('confirm', folderName.value.trim())
 }
 
 const handleCancel = () => {
   dialogValue.value = false
   resetForm()
 }
+
 </script>
 
 <template>
@@ -182,7 +91,7 @@ const handleCancel = () => {
         <div class="mb-4">
           <div class="text-caption text-medium-emphasis">Account</div>
           <div class="text-body-2">
-            {{ service.label || service.primaryAddress || 'Mail Account' }}
+            {{ service.label || service.primaryAddress?.format() || 'Mail Account' }}
           </div>
         </div>
         

src/components/DeleteFolderDialog.vue

@@ -0,0 +1,131 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
+import type { CollectionObject } from '@MailManager/models/collection'
+import type { ServiceObject } from '@MailManager/models'
+
+interface Props {
+  modelValue: boolean
+  service: ServiceObject
+  folder: CollectionObject
+  loading?: boolean
+  errorMessage?: string
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  loading: false,
+  errorMessage: '',
+})
+
+const emit = defineEmits<{
+  'update:modelValue': [value: boolean]
+  confirm: []
+}>()
+
+const collectionsStore = useCollectionsStore()
+
+const dialogValue = computed({
+  get: () => props.modelValue,
+  set: (value: boolean) => emit('update:modelValue', value),
+})
+
+const folderLabel = computed(() => props.folder.properties.label || String(props.folder.identifier))
+
+const hasChildren = computed(() => {
+  return collectionsStore.hasChildrenInCollection(props.folder.provider, props.folder.service, props.folder.identifier)
+})
+
+watch(dialogValue, isOpen => {
+  if (isOpen) {
+  }
+})
+
+const handleDelete = () => {
+  emit('confirm')
+}
+
+const handleCancel = () => {
+  dialogValue.value = false
+}
+</script>
+
+<template>
+  <v-dialog
+    v-model="dialogValue"
+    max-width="520"
+    persistent
+  >
+    <v-card>
+      <v-card-title class="text-h5">
+        Delete Folder
+      </v-card-title>
+
+      <v-card-text>
+        <div class="mb-4">
+          <div class="text-caption text-medium-emphasis">Account</div>
+          <div class="text-body-2">
+            {{ service.label || service.primaryAddress?.format() || 'Mail Account' }}
+          </div>
+        </div>
+
+        <div class="mb-4">
+          <div class="text-caption text-medium-emphasis">Folder</div>
+          <div class="text-body-2">
+            {{ folderLabel }}
+          </div>
+        </div>
+
+        <p class="text-body-2 mb-0">
+          Confirm deletion of this folder.
+        </p>
+
+        <p
+          v-if="hasChildren"
+          class="text-body-2 mt-3 mb-0"
+        >
+          This folder contains subfolders. The delete request may be rejected if the provider does not allow deleting non-empty folders.
+        </p>
+
+        <v-alert
+          v-if="errorMessage"
+          type="error"
+          variant="tonal"
+          density="compact"
+          class="mt-4"
+        >
+          {{ errorMessage }}
+        </v-alert>
+      </v-card-text>
+
+      <v-card-actions>
+        <v-spacer />
+
+        <v-btn
+          variant="text"
+          :disabled="loading"
+          @click="handleCancel"
+        >
+          Cancel
+        </v-btn>
+
+        <v-btn
+          color="error"
+          variant="elevated"
+          :loading="loading"
+          @click="handleDelete"
+        >
+          Delete Folder
+        </v-btn>
+      </v-card-actions>
+    </v-card>
+  </v-dialog>
+</template>
+
+<style scoped>
+.text-caption {
+  font-size: 0.75rem;
+  font-weight: 500;
+  text-transform: uppercase;
+  letter-spacing: 0.0333em;
+}
+</style>

src/components/FolderPageView.vue

@@ -22,7 +22,9 @@ const collectionsStore = useCollectionsStore()
 const emit = defineEmits<{
   select: [folder: CollectionObject]
   createFolder: [service: ServiceObject, parentFolder: CollectionObject | null]
-  editFolder: [service: ServiceObject, folder: CollectionObject]
+  editFolder: [folder: CollectionObject]
+  moveFolder: [folder: CollectionObject]
+  deleteFolder: [folder: CollectionObject]
 }>()
 
 // Page-based navigation state per service account
@@ -42,6 +44,10 @@ const getCurrentPageLevel = (service: ServiceObject): (string | number | null)[]
 
 // Get folders for current page level
 const getCurrentPageFolders = (service: ServiceObject): CollectionObject[] => {
+  if (service.identifier === null) {
+    return []
+  }
+
   const level = getCurrentPageLevel(service)
   const currentParent = level[level.length - 1]
   return collectionsStore.collectionsInCollection(service.provider, service.identifier, currentParent)
@@ -53,9 +59,17 @@ const hasChildren = (folder: CollectionObject): boolean => {
 }
 
 const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
+  if (service.identifier === null) {
+    return []
+  }
+
   return collectionsStore.collectionsForService(service.provider, service.identifier)
 }
 
+const canDeleteFolder = (folder: CollectionObject): boolean => {
+  return !folder.properties.role
+}
+
 // Get icon for folder based on role
 const getFolderIcon = (folder: CollectionObject): string => {
   switch (folder.properties.role) {
@@ -127,6 +141,10 @@ const navigateBack = (service: ServiceObject) => {
 
 // Get breadcrumb label for current page
 const getCurrentBreadcrumb = (service: ServiceObject): string => {
+  if (service.identifier === null) {
+    return 'Folders'
+  }
+
   const level = getCurrentPageLevel(service)
   const currentParent = level[level.length - 1]
   if (currentParent === null) return 'All Folders'
@@ -143,6 +161,10 @@ const getCurrentBreadcrumb = (service: ServiceObject): string => {
 
 // Get current parent folder for dialog context
 const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null => {
+  if (service.identifier === null) {
+    return null
+  }
+
   const level = getCurrentPageLevel(service)
   const currentParent = level[level.length - 1]
   if (currentParent === null) return null
@@ -165,7 +187,7 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
             v-bind="activatorProps"
             class="account-header-item"
             :title="group.service.label || 'Mail Account'"
-            :subtitle="group.service.primaryAddress || undefined"
+            :subtitle="group.service.primaryAddress?.address || undefined"
           >
             <template v-slot:prepend>
               <v-icon icon="mdi-email-outline" />
@@ -261,7 +283,7 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
               <v-list density="compact">
                 <v-list-item
                   prepend-icon="mdi-pencil"
-                  @click="emit('editFolder', group.service, folder)"
+                  @click="emit('editFolder', folder)"
                 >
                   <v-list-item-title>Edit Folder Name</v-list-item-title>
                 </v-list-item>
@@ -271,6 +293,20 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
                 >
                   <v-list-item-title>New Subfolder</v-list-item-title>
                 </v-list-item>
+                <v-list-item
+                  prepend-icon="mdi-folder-move"
+                  @click="emit('moveFolder', folder)"
+                >
+                  <v-list-item-title>Move Folder</v-list-item-title>
+                </v-list-item>
+                <v-list-item
+                  v-if="canDeleteFolder(folder)"
+                  prepend-icon="mdi-delete"
+                  base-color="error"
+                  @click="emit('deleteFolder', folder)"
+                >
+                  <v-list-item-title>Delete Folder</v-list-item-title>
+                </v-list-item>
               </v-list>
             </v-menu>
           </template>
@@ -312,7 +348,7 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
         <v-list-item
           class="account-header-item"
           :title="group.service.label || 'Mail Account'"
-          :subtitle="group.service.primaryAddress || undefined"
+          :subtitle="group.service.primaryAddress?.address || undefined"
         >
           <template v-slot:prepend>
             <v-icon icon="mdi-email-outline" />
@@ -410,7 +446,7 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
               <v-list density="compact">
                 <v-list-item
                   prepend-icon="mdi-pencil"
-                  @click="emit('editFolder', group.service, folder)"
+                  @click="emit('editFolder', folder)"
                 >
                   <v-list-item-title>Edit Folder Name</v-list-item-title>
                 </v-list-item>
@@ -420,6 +456,20 @@ const getCurrentParentFolder = (service: ServiceObject): CollectionObject | null
                 >
                   <v-list-item-title>New Subfolder</v-list-item-title>
                 </v-list-item>
+                <v-list-item
+                  prepend-icon="mdi-folder-move"
+                  @click="emit('moveFolder', folder)"
+                >
+                  <v-list-item-title>Move Folder</v-list-item-title>
+                </v-list-item>
+                <v-list-item
+                  v-if="canDeleteFolder(folder)"
+                  prepend-icon="mdi-delete"
+                  base-color="error"
+                  @click="emit('deleteFolder', folder)"
+                >
+                  <v-list-item-title>Delete Folder</v-list-item-title>
+                </v-list-item>
               </v-list>
             </v-menu>
           </template>

src/components/FolderSelectionDialog.vue

@@ -1,8 +1,7 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
+import { useMailOperationsStore } from '@/stores/mailOperationsStore'
 import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
-import { useServicesStore } from '@MailManager/stores/servicesStore'
-import { useMailStore } from '@/stores/mailStore'
 import type { ServiceObject, CollectionObject } from '@MailManager/models'
 import FolderSelectionTreeNode from './FolderSelectionTreeNode.vue'
 
@@ -12,6 +11,8 @@ interface Props {
   title?: string
   confirmText?: string
   emptyText?: string
+  service?: ServiceObject | null
+  disabledFolderKeys?: string[]
 }
 
 const props = withDefaults(defineProps<Props>(), {
@@ -19,17 +20,18 @@ const props = withDefaults(defineProps<Props>(), {
   title: 'Move To',
   confirmText: 'Move',
   emptyText: 'No folders are available.',
+  service: null,
+  disabledFolderKeys: () => [],
 })
 
 const emit = defineEmits<{
   'update:modelValue': [value: boolean]
-  select: [folder: CollectionObject]
+  select: [target: CollectionObject]
   cancel: []
 }>()
 
+const mailOperationsStore = useMailOperationsStore()
 const collectionsStore = useCollectionsStore()
-const servicesStore = useServicesStore()
-const mailStore = useMailStore()
 
 const selectedFolderKey = ref<string | null>(null)
 
@@ -38,10 +40,6 @@ const dialogValue = computed({
   set: (value: boolean) => emit('update:modelValue', value),
 })
 
-const folderKeyFor = (folder: CollectionObject): string => {
-  return `${folder.provider}:${String(folder.service)}:${String(folder.identifier)}`
-}
-
 interface ServiceGroup {
   service: ServiceObject
   loading: boolean
@@ -50,17 +48,7 @@ interface ServiceGroup {
 }
 
 const serviceGroups = computed<ServiceGroup[]>(() => {
-  const moveCandidate = mailStore.moveMessageCandidate
-
-  if (!moveCandidate) {
-    return []
-  }
-
-  const service = servicesStore.services.find(entry =>
-    entry.provider === moveCandidate.provider &&
-    String(entry.identifier) === String(moveCandidate.service),
-  )
-
+  const service = props.service
   if (!service) {
     return []
   }
@@ -71,12 +59,40 @@ const serviceGroups = computed<ServiceGroup[]>(() => {
 
   return [{
     service,
-    loading: mailStore.isServiceFolderLoading(service.provider, service.identifier),
-    loaded: mailStore.hasServiceFoldersLoaded(service.provider, service.identifier),
-    error: mailStore.getServiceFolderError(service.provider, service.identifier),
+    loading: mailOperationsStore.isServiceFolderLoading(service.provider, service.identifier),
+    loaded: mailOperationsStore.hasServiceFoldersLoaded(service.provider, service.identifier),
+    error: mailOperationsStore.getServiceFolderError(service.provider, service.identifier),
   }]
 })
 
+const selectedFolder = computed(() => {
+  if (!selectedFolderKey.value) {
+    return null
+  }
+
+  const group = serviceGroups.value[0]
+  if (!group) {
+    return null
+  }
+
+  return getServiceFolders(group.service).find(folder => folder.identifier === selectedFolderKey.value) ?? null
+})
+
+const canConfirm = computed(() => {
+  return selectedFolder.value !== null && !props.loading
+})
+
+watch(
+  () => props.modelValue,
+  (isOpen) => {
+    if (!isOpen) {
+      return
+    }
+
+    selectedFolderKey.value = null
+  },
+)
+
 const getRootFolders = (service: ServiceObject): CollectionObject[] => {
   if (service.identifier === null) {
     return []
@@ -93,36 +109,8 @@ const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
   return collectionsStore.collectionsForService(service.provider, service.identifier)
 }
 
-const selectedFolder = computed(() => {
-  if (!selectedFolderKey.value) {
-    return null
-  }
-
-  const group = serviceGroups.value[0]
-  if (!group) {
-    return null
-  }
-
-  return getServiceFolders(group.service).find(folder => folderKeyFor(folder) === selectedFolderKey.value) ?? null
-})
-
-const canConfirm = computed(() => {
-  return selectedFolder.value !== null && !props.loading
-})
-
-watch(
-  () => [props.modelValue, mailStore.moveMessageCandidate],
-  ([isOpen]) => {
-    if (!isOpen) {
-      return
-    }
-
-    selectedFolderKey.value = null
-  },
-)
-
 const handleSelect = (folder: CollectionObject) => {
-  selectedFolderKey.value = folderKeyFor(folder)
+  selectedFolderKey.value = folder.identifier
 }
 
 const handleCancel = () => {
@@ -163,7 +151,7 @@ const handleConfirm = () => {
               <v-list-item
                 class="account-header-item account-header-static"
                 :title="group.service.label || 'Mail Account'"
-                :subtitle="group.service.primaryAddress || undefined"
+                :subtitle="group.service.primaryAddress?.address || undefined"
               >
                 <template #prepend>
                   <v-icon icon="mdi-email-outline" />
@@ -172,10 +160,11 @@ const handleConfirm = () => {
 
               <FolderSelectionTreeNode
                 v-for="folder in getRootFolders(group.service)"
-                :key="folderKeyFor(folder)"
+                :key="folder.identifier"
                 :folder="folder"
                 :service="group.service"
                 :selected-folder-key="selectedFolderKey"
+                :disabled-folder-keys="disabledFolderKeys"
                 @select="handleSelect"
               />
 

src/components/FolderSelectionTreeNode.vue

@@ -3,11 +3,13 @@ import { computed, ref } from 'vue'
 import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
 import type { CollectionObject } from '@MailManager/models/collection'
 import type { ServiceObject } from '@MailManager/models'
+import type { CollectionIdentifier } from '@MailManager/types/common'
 
 interface Props {
   folder: CollectionObject
   service: ServiceObject
   selectedFolderKey: string | null
+  disabledFolderKeys?: string[]
 }
 
 const props = defineProps<Props>()
@@ -19,9 +21,7 @@ const emit = defineEmits<{
 
 const expanded = ref(false)
 
-const folderKeyFor = (folder: CollectionObject): string => {
-  return `${folder.provider}:${String(folder.service)}:${String(folder.identifier)}`
-}
+const folderKeyFor = (folder: CollectionObject): string => String(folder.identifier)
 
 const folderLabelFor = (folder: CollectionObject): string => {
   return folder.properties.label || String(folder.identifier)
@@ -66,6 +66,7 @@ const folderColorFor = (folder: CollectionObject): string | undefined => {
 }
 
 const key = computed(() => folderKeyFor(props.folder))
+const isDisabled = computed(() => (props.disabledFolderKeys ?? []).includes(key.value))
 
 const childFolders = computed(() => {
   const serviceIdentifier = props.service.identifier
@@ -74,7 +75,11 @@ const childFolders = computed(() => {
     return []
   }
 
-  return collectionsStore.collectionsInCollection(props.service.provider, serviceIdentifier, props.folder.identifier)
+  return collectionsStore.collectionsInCollection(
+    props.service.provider,
+    serviceIdentifier,
+    props.folder.identifier as CollectionIdentifier,
+  )
 })
 
 const hasChildren = computed(() => {
@@ -84,11 +89,15 @@ const hasChildren = computed(() => {
     return false
   }
 
-  return collectionsStore.hasChildrenInCollection(props.service.provider, serviceIdentifier, props.folder.identifier)
+  return collectionsStore.hasChildrenInCollection(props.service.provider, serviceIdentifier, props.folder.identifier as CollectionIdentifier)
 })
 const isSelected = computed(() => props.selectedFolderKey === key.value)
 
 const onSelect = () => {
+  if (isDisabled.value) {
+    return
+  }
+
   emit('select', props.folder)
 }
 
@@ -111,6 +120,7 @@ const onGroupDoubleClick = () => {
       class="folder-node"
       :title="folderLabelFor(folder)"
       :active="isSelected"
+      :disabled="isDisabled"
       @click="onSelect"
       @dblclick.stop="onGroupDoubleClick"
     >
@@ -152,6 +162,7 @@ const onGroupDoubleClick = () => {
     class="folder-node"
     :title="folderLabelFor(folder)"
     :active="isSelected"
+    :disabled="isDisabled"
     @click="onSelect"
   >
     <template #prepend>

src/components/FolderTree.vue

@@ -1,153 +0,0 @@
-<script setup lang="ts">
-import { ref, computed } from 'vue'
-import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
-import { useServicesStore } from '@MailManager/stores/servicesStore'
-import { useMailStore } from '@/stores/mailStore'
-import { useUser } from '@KTXC'
-import FolderTreeView from './FolderTreeView.vue'
-import FolderPageView from './FolderPageView.vue'
-import CreateFolderDialog from './CreateFolderDialog.vue'
-import RenameFolderDialog from './RenameFolderDialog.vue'
-import type { CollectionObject } from '@MailManager/models/collection'
-import type { ServiceObject } from '@MailManager/models'
-
-type FolderViewMode = 'tree' | 'page'
-
-const props = defineProps<{
-  selectedFolder?: CollectionObject | null
-}>()
-
-// Emits
-const emit = defineEmits<{
-  select: [folder: CollectionObject]
-  folderCreated: [folder: CollectionObject]
-}>()
-
-// Stores
-const collectionsStore = useCollectionsStore()
-const servicesStore = useServicesStore()
-const mailStore = useMailStore()
-
-// User settings
-const { settings } = useUser()
-
-// Folder view mode from user settings
-const folderViewMode = computed(() => {
-  return (settings.value.get('mail.folderViewMode') as FolderViewMode) || 'tree'
-})
-
-// Create folder dialog state
-const createDialogVisible = ref(false)
-const createDialogService = ref<ServiceObject | null>(null)
-const createDialogParent = ref<CollectionObject | null>(null)
-const renameDialogVisible = ref(false)
-const renameDialogService = ref<ServiceObject | null>(null)
-const renameDialogFolder = ref<CollectionObject | null>(null)
-
-// Handle create folder event from child components
-const handleCreateFolder = (service: ServiceObject, parentFolder: CollectionObject | null = null) => {
-  createDialogService.value = service
-  createDialogParent.value = parentFolder
-  createDialogVisible.value = true
-}
-
-// Handle folder created
-const handleFolderCreated = (newFolder: CollectionObject) => {
-  emit('folderCreated', newFolder)
-  emit('select', newFolder)
-}
-
-const handleEditFolder = (service: ServiceObject, folder: CollectionObject) => {
-  renameDialogService.value = service
-  renameDialogFolder.value = folder
-  renameDialogVisible.value = true
-}
-
-const handleFolderRenamed = (updatedFolder: CollectionObject) => {
-  emit('select', updatedFolder)
-}
-
-// Computed: all folders for validation
-const allFolders = computed(() => 
-  servicesStore.services.flatMap(service =>
-    collectionsStore.collectionsForService(service.provider, service.identifier),
-  )
-)
-
-interface ServiceGroup {
-  service: ServiceObject
-  loading: boolean
-  loaded: boolean
-  error: string | null
-}
-const serviceGroups = computed(() => {
-  const groups: ServiceGroup[] = []
-
-  servicesStore.services.forEach(service => {
-    groups.push({
-      service,
-      loading: mailStore.isServiceFolderLoading(service.provider, service.identifier),
-      loaded: mailStore.hasServiceFoldersLoaded(service.provider, service.identifier),
-      error: mailStore.getServiceFolderError(service.provider, service.identifier),
-    })
-  })
-
-  return groups
-})
-</script>
-
-<template>
-  <v-list density="compact" nav>
-    <!-- Tree View -->
-    <FolderTreeView
-      v-if="folderViewMode === 'tree'"
-      :selected-folder="selectedFolder"
-      :service-groups="serviceGroups"
-      @select="emit('select', $event)"
-      @create-folder="handleCreateFolder"
-      @edit-folder="handleEditFolder"
-    />
-
-    <!-- Page-based View -->
-    <FolderPageView
-      v-else
-      :selected-folder="selectedFolder"
-      :service-groups="serviceGroups"
-      @select="emit('select', $event)"
-      @create-folder="handleCreateFolder"
-      @edit-folder="handleEditFolder"
-    />
-
-    <!-- Empty state -->
-    <v-list-item v-if="servicesStore.services.length === 0">
-      <v-list-item-title class="text-center text-medium-emphasis">
-        No mail accounts configured
-      </v-list-item-title>
-    </v-list-item>
-  </v-list>
-  
-  <!-- Create Folder Dialog -->
-  <CreateFolderDialog
-    v-if="createDialogService"
-    v-model="createDialogVisible"
-    :service="createDialogService"
-    :parent-folder="createDialogParent"
-    :all-folders="allFolders"
-    @created="handleFolderCreated"
-  />
-
-  <RenameFolderDialog
-    v-if="renameDialogService && renameDialogFolder"
-    v-model="renameDialogVisible"
-    :service="renameDialogService"
-    :folder="renameDialogFolder"
-    :all-folders="allFolders"
-    @updated="handleFolderRenamed"
-  />
-</template>
-
-<style scoped>
-.v-list-item--active {
-  background-color: rgba(var(--v-theme-primary), 0.12);
-}
-</style>

src/components/FolderTreeNode.vue

@@ -17,17 +17,21 @@ const expanded = ref(false)
 const emit = defineEmits<{
   select: [folder: CollectionObject]
   createSubfolder: [service: ServiceObject, parentFolder: CollectionObject]
-  editFolder: [service: ServiceObject, folder: CollectionObject]
+  editFolder: [folder: CollectionObject]
+  moveFolder: [folder: CollectionObject]
+  deleteFolder: [folder: CollectionObject]
 }>()
 
 const childFolders = computed(() => {
-  return collectionsStore.collectionsInCollection(props.service.provider, props.service.identifier, props.folder.identifier)
+  return collectionsStore.collectionsInCollection(props.service.provider, props.service.identifier ?? '', props.folder.identifier)
 })
 
 const hasChildren = computed(() => {
-  return collectionsStore.hasChildrenInCollection(props.service.provider, props.service.identifier, props.folder.identifier)
+  return collectionsStore.hasChildrenInCollection(props.service.provider, props.service.identifier ?? '', props.folder.identifier)
 })
 
+const canDeleteFolder = computed(() => !props.folder.properties.role)
+
 const handleExpandableFolderClick = () => {
   expanded.value = !expanded.value
   emit('select', props.folder)
@@ -95,12 +99,12 @@ const isSelected = (folder: CollectionObject): boolean => {
         @click.stop="handleExpandableFolderClick()"
       >
         <template v-slot:prepend>
-          <v-icon 
-            :icon="getFolderIcon(folder)" 
+          <v-icon
+            :icon="getFolderIcon(folder)"
             :color="getFolderColor(folder)"
           />
         </template>
-        
+
         <template v-slot:append>
           <v-badge
             v-if="folder.properties.unread && folder.properties.unread > 0"
@@ -109,8 +113,7 @@ const isSelected = (folder: CollectionObject): boolean => {
             inline
             class="mr-2"
           />
-          
-          <!-- Action menu -->
+
           <v-menu>
             <template v-slot:activator="{ props: menuProps }">
               <v-btn
@@ -124,11 +127,11 @@ const isSelected = (folder: CollectionObject): boolean => {
                 <v-icon size="small">mdi-dots-vertical</v-icon>
               </v-btn>
             </template>
-            
+
             <v-list density="compact">
               <v-list-item
                 prepend-icon="mdi-pencil"
-                @click="emit('editFolder', service, folder)"
+                @click="emit('editFolder', folder)"
               >
                 <v-list-item-title>Edit Folder Name</v-list-item-title>
               </v-list-item>
@@ -138,6 +141,20 @@ const isSelected = (folder: CollectionObject): boolean => {
               >
                 <v-list-item-title>New Subfolder</v-list-item-title>
               </v-list-item>
+              <v-list-item
+                prepend-icon="mdi-folder-move"
+                @click="emit('moveFolder', folder)"
+              >
+                <v-list-item-title>Move Folder</v-list-item-title>
+              </v-list-item>
+              <v-list-item
+                v-if="canDeleteFolder"
+                prepend-icon="mdi-delete"
+                base-color="error"
+                @click="emit('deleteFolder', folder)"
+              >
+                <v-list-item-title>Delete Folder</v-list-item-title>
+              </v-list-item>
             </v-list>
           </v-menu>
         </template>
@@ -153,7 +170,9 @@ const isSelected = (folder: CollectionObject): boolean => {
         :selected-folder="selectedFolder"
         @select="emit('select', $event)"
         @create-subfolder="(service, parentFolder) => emit('createSubfolder', service, parentFolder)"
-        @edit-folder="(service, folder) => emit('editFolder', service, folder)"
+        @edit-folder="(folder) => emit('editFolder', folder)"
+        @move-folder="(folder) => emit('moveFolder', folder)"
+        @delete-folder="(folder) => emit('deleteFolder', folder)"
       />
     </div>
   </v-list-group>
@@ -166,12 +185,12 @@ const isSelected = (folder: CollectionObject): boolean => {
     @click="emit('select', folder)"
   >
     <template v-slot:prepend>
-      <v-icon 
-        :icon="getFolderIcon(folder)" 
+      <v-icon
+        :icon="getFolderIcon(folder)"
         :color="getFolderColor(folder)"
       />
     </template>
-    
+
     <template v-slot:append>
       <v-badge
         v-if="folder.properties.unread && folder.properties.unread > 0"
@@ -180,8 +199,7 @@ const isSelected = (folder: CollectionObject): boolean => {
         inline
         class="mr-2"
       />
-      
-      <!-- Action menu -->
+
       <v-menu>
         <template v-slot:activator="{ props: menuProps }">
           <v-btn
@@ -195,11 +213,11 @@ const isSelected = (folder: CollectionObject): boolean => {
             <v-icon size="small">mdi-dots-vertical</v-icon>
           </v-btn>
         </template>
-        
+
         <v-list density="compact">
           <v-list-item
             prepend-icon="mdi-pencil"
-            @click="emit('editFolder', service, folder)"
+            @click="emit('editFolder', folder)"
           >
             <v-list-item-title>Edit Folder Name</v-list-item-title>
           </v-list-item>
@@ -209,6 +227,20 @@ const isSelected = (folder: CollectionObject): boolean => {
           >
             <v-list-item-title>New Subfolder</v-list-item-title>
           </v-list-item>
+          <v-list-item
+            prepend-icon="mdi-folder-move"
+            @click="emit('moveFolder', folder)"
+          >
+            <v-list-item-title>Move Folder</v-list-item-title>
+          </v-list-item>
+          <v-list-item
+            v-if="canDeleteFolder"
+            prepend-icon="mdi-delete"
+            base-color="error"
+            @click="emit('deleteFolder', folder)"
+          >
+            <v-list-item-title>Delete Folder</v-list-item-title>
+          </v-list-item>
         </v-list>
       </v-menu>
     </template>

src/components/FolderTreeView.vue

@@ -15,14 +15,16 @@ interface Props {
   }>
 }
 
-const props = defineProps<Props>()
+defineProps<Props>()
 const collectionsStore = useCollectionsStore()
 
 // Emits
 const emit = defineEmits<{
   select: [folder: CollectionObject]
   createFolder: [service: ServiceObject, parentFolder: CollectionObject | null]
-  editFolder: [service: ServiceObject, folder: CollectionObject]
+  editFolder: [folder: CollectionObject]
+  moveFolder: [folder: CollectionObject]
+  deleteFolder: [folder: CollectionObject]
 }>()
 
 const getRootFolders = (service: ServiceObject): CollectionObject[] => {
@@ -44,7 +46,7 @@ const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
             v-bind="activatorProps"
             class="account-header-item"
             :title="group.service.label || 'Mail Account'"
-            :subtitle="group.service.primaryAddress || undefined"
+            :subtitle="group.service.primaryAddress?.address || undefined"
           >
             <template v-slot:prepend>
               <v-icon icon="mdi-email-outline" />
@@ -73,7 +75,9 @@ const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
           :selected-folder="selectedFolder"
           @select="emit('select', $event)"
           @create-subfolder="(service, parentFolder) => emit('createFolder', service, parentFolder)"
-          @edit-folder="(service, folder) => emit('editFolder', service, folder)"
+          @edit-folder="(folder) => emit('editFolder', folder)"
+          @move-folder="(folder) => emit('moveFolder', folder)"
+          @delete-folder="(folder) => emit('deleteFolder', folder)"
         />
 
         <v-list-item v-if="group.loading && getServiceFolders(group.service).length === 0" disabled class="folder-status-item">
@@ -112,7 +116,7 @@ const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
         <v-list-item
           class="account-header-item account-header-static"
           :title="group.service.label || 'Mail Account'"
-          :subtitle="group.service.primaryAddress || undefined"
+          :subtitle="group.service.primaryAddress?.address || undefined"
         >
           <template v-slot:prepend>
             <v-icon icon="mdi-email-outline" />
@@ -155,6 +159,8 @@ const getServiceFolders = (service: ServiceObject): CollectionObject[] => {
           @select="emit('select', $event)"
           @create-subfolder="(service, parentFolder) => emit('createFolder', service, parentFolder)"
           @edit-folder="(service, folder) => emit('editFolder', service, folder)"
+          @move-folder="(service, folder) => emit('moveFolder', service, folder)"
+          @delete-folder="(service, folder) => emit('deleteFolder', service, folder)"
         />
 
         <v-list-item v-if="group.loading && getServiceFolders(group.service).length === 0" disabled class="folder-status-item">

src/components/FolderView.vue

@@ -0,0 +1,113 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { storeToRefs } from 'pinia'
+import { useServicesStore } from '@MailManager/stores/servicesStore'
+import { useMailOperationsStore } from '@/stores/mailOperationsStore'
+import { useMailSettingsStore } from '@/stores/mailSettingsStore'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import FolderTreeView from './FolderTreeView.vue'
+import FolderPageView from './FolderPageView.vue'
+import type { CollectionObject } from '@MailManager/models/collection'
+import type { ServiceObject } from '@MailManager/models'
+
+interface ServiceGroup {
+  service: ServiceObject
+  loading: boolean
+  loaded: boolean
+  error: string | null
+}
+
+const props = defineProps<{
+  selectedFolder?: CollectionObject | null
+}>()
+
+// Emits
+const emit = defineEmits<{
+  select: [folder: CollectionObject]
+}>()
+
+// Stores
+const servicesStore = useServicesStore()
+const mailOperationsStore = useMailOperationsStore()
+const mailUiStore = useMailUiStore()
+const mailSettingsStore = useMailSettingsStore()
+const { folderViewMode } = storeToRefs(mailSettingsStore)
+
+const serviceGroups = computed(() => {
+  const groups: ServiceGroup[] = []
+
+  servicesStore.servicesEnabled.forEach(service => {
+    if (service.identifier === null) {
+      return
+    }
+
+    groups.push({
+      service,
+      loading: mailOperationsStore.isServiceFolderLoading(service.provider, service.identifier),
+      loaded: mailOperationsStore.hasServiceFoldersLoaded(service.provider, service.identifier),
+      error: mailOperationsStore.getServiceFolderError(service.provider, service.identifier),
+    })
+  })
+
+  return groups
+})
+
+// Handlers
+const handleFolderCreate = (service: ServiceObject, parentFolder: CollectionObject | null = null) => {
+  mailUiStore.openCreateFolderDialog(service, parentFolder)
+}
+
+const handleFolderEdit = (folder: CollectionObject) => {
+  mailUiStore.openRenameFolderDialog(folder)
+}
+
+const handleFolderDelete = (folder: CollectionObject) => {
+  mailUiStore.openDeleteFolderDialog(folder)
+}
+
+const handleFolderMove = (folder: CollectionObject) => {
+  mailUiStore.openMoveFolderDialog(folder)
+}
+
+</script>
+
+<template>
+  <v-list density="compact" nav>
+    <!-- Tree View -->
+    <FolderTreeView
+      v-if="folderViewMode === 'tree'"
+      :selected-folder="selectedFolder"
+      :service-groups="serviceGroups"
+      @select="emit('select', $event)"
+      @create-folder="handleFolderCreate"
+      @edit-folder="handleFolderEdit"
+      @move-folder="handleFolderMove"
+      @delete-folder="handleFolderDelete"
+    />
+
+    <!-- Page-based View -->
+    <FolderPageView
+      v-else
+      :selected-folder="selectedFolder"
+      :service-groups="serviceGroups"
+      @select="emit('select', $event)"
+      @create-folder="handleFolderCreate"
+      @edit-folder="handleFolderEdit"
+      @move-folder="handleFolderMove"
+      @delete-folder="handleFolderDelete"
+    />
+
+    <!-- Empty state -->
+    <v-list-item v-if="servicesStore.servicesEnabled.length === 0">
+      <v-list-item-title class="text-center text-medium-emphasis">
+        No mail accounts configured
+      </v-list-item-title>
+    </v-list-item>
+  </v-list>
+</template>
+
+<style scoped>
+.v-list-item--active {
+  background-color: rgba(var(--v-theme-primary), 0.12);
+}
+</style>

src/components/MessageComposer.vue

@@ -1,22 +1,28 @@
 <script setup lang="ts">
 import { ref, computed, watch, onBeforeUnmount } from 'vue'
-import { useEditor, EditorContent } from '@tiptap/vue-3'
+import { storeToRefs } from 'pinia'
+import { useEditor } from '@tiptap/vue-3'
 import StarterKit from '@tiptap/starter-kit'
 import Link from '@tiptap/extension-link'
 import Underline from '@tiptap/extension-underline'
 import TextAlign from '@tiptap/extension-text-align'
 import Placeholder from '@tiptap/extension-placeholder'
-import { entityService } from '@MailManager/services'
-import type { EntityInterface } from '@MailManager/types/entity'
-import type { MessageInterface } from '@MailManager/types/message'
-import type { CollectionInterface } from '@MailManager/types/collection'
-import { MessageObject } from '@MailManager/models/message'
 import { EntityObject } from '@MailManager/models/entity'
+import type { CollectionObject, MessageAddressObject } from '@MailManager/models'
+import { useMailOperationsStore } from '@/stores/mailOperationsStore'
+import { useMailCompositionStore } from '@/stores/mailCompositionStore'
+import { ComposerMode } from '@/types/composer'
+import ComposerToolbar from '@/components/composer/ComposerToolbar.vue'
+import ComposerSender from '@/components/composer/ComposerSender.vue'
+import ComposerRecipients from '@/components/composer/ComposerRecipients.vue'
+import ComposerAttachments from '@/components/composer/ComposerAttachments.vue'
+import ComposerEditor from '@/components/composer/ComposerEditor.vue'
 
 // Props
 interface Props {
-  replyTo?: EntityInterface<MessageInterface> | null
-  folder?: CollectionInterface | null
+  mode: ComposerMode
+  source?: EntityObject | MessageAddressObject | null
+  folder?: CollectionObject | null
 }
 
 const props = defineProps<Props>()
@@ -24,23 +30,55 @@ const props = defineProps<Props>()
 // Emits
 const emit = defineEmits<{
   close: []
-  sent: []
 }>()
 
+const mailOperationsStore = useMailOperationsStore()
+const compositionStore = useMailCompositionStore()
+const {
+  composerSending: sending,
+} = storeToRefs(mailOperationsStore)
+
+const {
+  activeDraft,
+  saving,
+  stageStatus,
+} = storeToRefs(compositionStore)
+
 // State
-const to = ref<string[]>([])
-const cc = ref<string[]>([])
-const bcc = ref<string[]>([])
-const subject = ref('')
 const showCc = ref(false)
 const showBcc = ref(false)
-const sending = ref(false)
-const saving = ref(false)
-const lastSaved = ref<Date | null>(null)
-const draftId = ref<string | null>(null)
+const applyingDraftToEditor = ref(false)
 
-// Auto-save timer
-let autoSaveTimer: ReturnType<typeof setTimeout> | null = null
+const sender = computed({
+  get: () => activeDraft.value?.sender ?? null,
+  set: value => {
+    if (value) {
+      compositionStore.updateSender(value)
+    }
+  },
+})
+
+const to = computed({
+  get: () => activeDraft.value?.message.to ?? [],
+  set: value => compositionStore.updateRecipients('to', value),
+})
+
+const cc = computed({
+  get: () => activeDraft.value?.message.cc ?? [],
+  set: value => compositionStore.updateRecipients('cc', value),
+})
+
+const bcc = computed({
+  get: () => activeDraft.value?.message.bcc ?? [],
+  set: value => compositionStore.updateRecipients('bcc', value),
+})
+
+const subject = computed({
+  get: () => activeDraft.value?.message.subject ?? '',
+  set: value => compositionStore.updateSubject(value),
+})
+
+const attachments = computed(() => activeDraft.value?.attachments ?? {})
 
 // Initialize Tiptap editor
 const editor = useEditor({
@@ -65,162 +103,75 @@ const editor = useEditor({
   },
 })
 
-// Initialize from reply-to message
-if (props.replyTo) {
-  const replyMessage = new MessageObject(props.replyTo.properties)
-  
-  const fromEmail = replyMessage.from?.address
-  to.value = fromEmail ? [fromEmail] : []
-  
-  const originalSubject = replyMessage.subject || ''
-  subject.value = originalSubject.startsWith('Re:') 
-    ? originalSubject
-    : `Re: ${originalSubject}`
-  
-  // Add quoted reply - prefer HTML content, fallback to text
-  const originalBody = replyMessage.getHtmlContent() || replyMessage.getTextContent() || ''
-  const senderName = replyMessage.from?.label || replyMessage.from?.address || 'Unknown'
-  const quotedReply = `<p><br></p><p>On ${new Date(replyMessage.date || '').toLocaleString()}, ${senderName} wrote:</p><blockquote>${originalBody}</blockquote>`
-  editor.value?.commands.setContent(quotedReply)
-}
+watch(
+  [() => props.mode, () => props.source, () => editor.value],
+  ([, , currentEditor]) => {
+    if (!currentEditor) {
+      return
+    }
+
+    compositionStore.openDraft(props.mode, props.source)
+    showCc.value = (activeDraft.value?.message.cc.length ?? 0) > 0
+    showBcc.value = (activeDraft.value?.message.bcc.length ?? 0) > 0
+
+    applyingDraftToEditor.value = true
+    currentEditor.commands.setContent(activeDraft.value?.message.body.html || '')
+    applyingDraftToEditor.value = false
+  },
+  { immediate: true },
+)
 
 // Computed
 const canSend = computed(() => {
   return to.value.length > 0 && subject.value.trim().length > 0
 })
 
-const saveStatus = computed(() => {
-  if (saving.value) return 'Saving...'
-  if (lastSaved.value) {
-    const seconds = Math.floor((Date.now() - lastSaved.value.getTime()) / 1000)
-    if (seconds < 60) return 'Saved just now'
-    if (seconds < 3600) return `Saved ${Math.floor(seconds / 60)} min ago`
-    return `Saved at ${lastSaved.value.toLocaleTimeString()}`
-  }
-  return ''
-})
-
-// Auto-save function
-const saveDraft = async () => {
-  if (saving.value || sending.value) return
-  if (!props.folder) return
-  
-  // Don't save if completely empty
-  if (to.value.length === 0 && subject.value.trim().length === 0 && !editor.value?.getText().trim()) {
+// Watch editor content changes
+watch(editor, currentEditor => {
+  if (!currentEditor) {
     return
   }
-  
-  saving.value = true
-  
-  try {
-    const draftData = {
-      to: to.value,
-      cc: cc.value,
-      bcc: bcc.value,
-      subject: subject.value,
-      body: {
-        html: editor.value?.getHTML() || '',
-        text: editor.value?.getText() || '',
-      },
+
+  const handleUpdate = () => {
+    if (applyingDraftToEditor.value) {
+      return
     }
-    
-    // Find drafts folder for this service
-    // For now, we'll use the current folder's service
-    // In a real implementation, you'd find the actual Drafts folder
-    const response = await entityService.create({
-      provider: props.folder.provider,
-      service: props.folder.service,
-      collection: props.folder.identifier, // Should be drafts folder ID
-      properties: draftData,
+
+    compositionStore.updateBody({
+      html: currentEditor.getHTML(),
+      text: currentEditor.getText(),
     })
-    
-    if (response) {
-      draftId.value = String(response.identifier)
-    }
-    
-    lastSaved.value = new Date()
-  } catch (error) {
-    console.error('[MessageComposer] Failed to save draft:', error)
-  } finally {
-    saving.value = false
   }
-}
 
-// Watch for changes and trigger auto-save
-const scheduleAutoSave = () => {
-  if (autoSaveTimer) {
-    clearTimeout(autoSaveTimer)
+  currentEditor.on('update', handleUpdate)
+
+  return () => {
+    currentEditor.off('update', handleUpdate)
   }
-  
-  autoSaveTimer = setTimeout(() => {
-    saveDraft()
-  }, 30000) // 30 seconds
-}
-
-watch([to, cc, bcc, subject], () => {
-  scheduleAutoSave()
-}, { deep: true })
-
-// Watch editor content changes
-if (editor.value) {
-  editor.value.on('update', () => {
-    scheduleAutoSave()
-  })
-}
+})
 
 // Cleanup
 onBeforeUnmount(() => {
-  if (autoSaveTimer) {
-    clearTimeout(autoSaveTimer)
-  }
+  void compositionStore.flushSave()
   editor.value?.destroy()
 })
 
 // Handlers
-const handleClose = () => {
+const handleClose = async () => {
+  await compositionStore.closeDraft()
   emit('close')
 }
 
 const handleSend = async () => {
-  if (!canSend.value || sending.value) return
-  
-  sending.value = true
-  
-  try {
-    await entityService.transmit({
-      message: {
-        to: to.value,
-        cc: cc.value.length > 0 ? cc.value : undefined,
-        bcc: bcc.value.length > 0 ? bcc.value : undefined,
-        subject: subject.value,
-        body: {
-          html: editor.value?.getHTML() || '',
-          text: editor.value?.getText() || '',
-        },
-      },
-    })
-    
-    // Delete draft if it was saved
-    if (draftId.value && props.folder) {
-      try {
-        await entityService.delete({
-          provider: props.folder.provider,
-          service: props.folder.service,
-          collection: props.folder.identifier,
-          identifier: draftId.value,
-        })
-      } catch (error) {
-        console.error('[MessageComposer] Failed to delete draft:', error)
-      }
-    }
-    
-    emit('sent')
-  } catch (error) {
-    console.error('[MessageComposer] Failed to send message:', error)
-    alert('Failed to send message. Please try again.')
-  } finally {
-    sending.value = false
-  }
+  await compositionStore.sendDraft()
+}
+
+const handleAttach = async (files: File[]) => {
+  await compositionStore.addAttachments(files)
+}
+
+const handleDetach = async (identifier: string) => {
+  await compositionStore.removeAttachment(identifier)
 }
 
 const toggleCc = () => {
@@ -244,7 +195,14 @@ const setLink = () => {
   }
 }
 const removeLink = () => editor.value?.chain().focus().unsetLink().run()
+const toggleLink = () => {
+  if (isActive('link')) {
+    removeLink()
+    return
+  }
 
+  setLink()
+}
 const isActive = (name: string, attrs?: any) => {
   return editor.value?.isActive(name, attrs) || false
 }
@@ -252,188 +210,62 @@ const isActive = (name: string, attrs?: any) => {
 
 <template>
   <div class="message-composer">
-    <!-- Toolbar -->
-    <v-toolbar density="compact" elevation="0" class="composer-toolbar">
-      <v-btn
-        variant="text"
-        @click="handleClose"
-        icon="mdi-close"
-      >
-        <v-icon>mdi-close</v-icon>
-        <v-tooltip activator="parent" location="bottom">Close</v-tooltip>
-      </v-btn>
+    <ComposerToolbar
+      :mode="mode"
+      :status="stageStatus"
+      :can-send="canSend"
+      :sending="sending"
+      @close="handleClose"
+      @send="handleSend"
+    />
 
-      <v-toolbar-title>
-        {{ replyTo ? 'Reply' : 'New Message' }}
-      </v-toolbar-title>
-
-      <v-spacer />
-
-      <span v-if="saveStatus" class="text-caption text-medium-emphasis mr-4">
-        {{ saveStatus }}
-      </span>
-
-      <v-btn
-        color="primary"
-        :disabled="!canSend"
-        :loading="sending"
-        @click="handleSend"
-        prepend-icon="mdi-send"
-      >
-        Send
-      </v-btn>
-    </v-toolbar>
-
-    <!-- Composer content -->
     <div class="composer-content">
-      <!-- Recipients -->
-      <div class="composer-fields pa-4">
-        <v-combobox
-          v-model="to"
-          label="To"
-          chips
-          multiple
-          closable-chips
-          variant="outlined"
-          density="compact"
-          class="mb-2"
-        >
-          <template v-slot:append-inner>
-            <v-btn
-              size="x-small"
-              variant="text"
-              @click="toggleCc"
-              class="mr-1"
-            >
-              Cc
-            </v-btn>
-            <v-btn
-              size="x-small"
-              variant="text"
-              @click="toggleBcc"
-            >
-              Bcc
-            </v-btn>
-          </template>
-        </v-combobox>
+      <ComposerSender
+        v-model="sender"
+        :options="compositionStore.senderIdentities"
+      />
 
-        <v-combobox
-          v-if="showCc"
-          v-model="cc"
-          label="Cc"
-          chips
-          multiple
-          closable-chips
-          variant="outlined"
-          density="compact"
-          class="mb-2"
-        />
-
-        <v-combobox
-          v-if="showBcc"
-          v-model="bcc"
-          label="Bcc"
-          chips
-          multiple
-          closable-chips
-          variant="outlined"
-          density="compact"
-          class="mb-2"
-        />
-
-        <v-text-field
-          v-model="subject"
-          label="Subject"
-          variant="outlined"
-          density="compact"
-        />
-      </div>
+      <ComposerRecipients
+        :to="to"
+        :cc="cc"
+        :bcc="bcc"
+        :subject="subject"
+        :show-cc="showCc"
+        :show-bcc="showBcc"
+        @update:to="to = $event"
+        @update:cc="cc = $event"
+        @update:bcc="bcc = $event"
+        @update:subject="subject = $event"
+        @toggle:cc="toggleCc"
+        @toggle:bcc="toggleBcc"
+      />
 
       <v-divider />
 
-      <!-- Editor toolbar -->
-      <v-toolbar density="compact" elevation="0" class="editor-toolbar">
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('bold') }"
-          @click="toggleBold"
-        >
-          <v-icon>mdi-format-bold</v-icon>
-          <v-tooltip activator="parent" location="bottom">Bold</v-tooltip>
-        </v-btn>
+      <ComposerAttachments
+        v-if="Object.keys(attachments).length > 0"
+        :attachments="attachments"
+        @remove="handleDetach"
+      />
 
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('italic') }"
-          @click="toggleItalic"
-        >
-          <v-icon>mdi-format-italic</v-icon>
-          <v-tooltip activator="parent" location="bottom">Italic</v-tooltip>
-        </v-btn>
+      <v-divider v-if="Object.keys(attachments).length > 0" />
 
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('underline') }"
-          @click="toggleUnderline"
-        >
-          <v-icon>mdi-format-underline</v-icon>
-          <v-tooltip activator="parent" location="bottom">Underline</v-tooltip>
-        </v-btn>
-
-        <v-divider vertical class="mx-2" />
-
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('bulletList') }"
-          @click="toggleBulletList"
-        >
-          <v-icon>mdi-format-list-bulleted</v-icon>
-          <v-tooltip activator="parent" location="bottom">Bullet List</v-tooltip>
-        </v-btn>
-
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('orderedList') }"
-          @click="toggleOrderedList"
-        >
-          <v-icon>mdi-format-list-numbered</v-icon>
-          <v-tooltip activator="parent" location="bottom">Numbered List</v-tooltip>
-        </v-btn>
-
-        <v-divider vertical class="mx-2" />
-
-        <v-btn
-          icon
-          size="small"
-          :class="{ 'v-btn--active': isActive('link') }"
-          @click="isActive('link') ? removeLink() : setLink()"
-        >
-          <v-icon>mdi-link</v-icon>
-          <v-tooltip activator="parent" location="bottom">Link</v-tooltip>
-        </v-btn>
-
-        <v-spacer />
-
-        <v-btn
-          icon
-          size="small"
-        >
-          <v-icon>mdi-paperclip</v-icon>
-          <v-tooltip activator="parent" location="bottom">Attach Files</v-tooltip>
-        </v-btn>
-      </v-toolbar>
-
-      <v-divider />
-
-      <!-- Editor -->
-      <div class="editor-container">
-        <editor-content :editor="editor" />
-      </div>
+      <ComposerEditor
+        :editor="editor"
+        :is-bold-active="isActive('bold')"
+        :is-italic-active="isActive('italic')"
+        :is-underline-active="isActive('underline')"
+        :is-bullet-list-active="isActive('bulletList')"
+        :is-ordered-list-active="isActive('orderedList')"
+        :is-link-active="isActive('link')"
+        @bold="toggleBold"
+        @italic="toggleItalic"
+        @underline="toggleUnderline"
+        @bullet-list="toggleBulletList"
+        @ordered-list="toggleOrderedList"
+        @link="toggleLink"
+        @attach="handleAttach"
+      />
     </div>
   </div>
 </template>
@@ -458,64 +290,4 @@ const isActive = (name: string, attrs?: any) => {
   overflow: hidden;
 }
 
-.composer-fields {
-  flex-shrink: 0;
-}
-
-.editor-toolbar {
-  flex-shrink: 0;
-  border-bottom: 1px solid rgb(var(--v-border-color));
-}
-
-.editor-container {
-  flex: 1;
-  overflow-y: auto;
-  background-color: rgb(var(--v-theme-background));
-}
-
-.v-btn--active {
-  background-color: rgba(var(--v-theme-primary), 0.12);
-  color: rgb(var(--v-theme-primary));
-}
-
-:deep(.tiptap-editor) {
-  outline: none;
-  min-height: 300px;
-  
-  p.is-editor-empty:first-child::before {
-    color: rgb(var(--v-theme-on-surface-variant));
-    content: attr(data-placeholder);
-    float: left;
-    height: 0;
-    pointer-events: none;
-  }
-  
-  h1, h2, h3, h4, h5, h6 {
-    line-height: 1.3;
-    margin-top: 1em;
-    margin-bottom: 0.5em;
-  }
-  
-  p {
-    margin-bottom: 0.5em;
-  }
-  
-  ul, ol {
-    padding-left: 1.5em;
-    margin-bottom: 0.5em;
-  }
-  
-  blockquote {
-    border-left: 3px solid rgb(var(--v-border-color));
-    padding-left: 1em;
-    margin-left: 0;
-    margin-bottom: 0.5em;
-    color: rgb(var(--v-theme-on-surface-variant));
-  }
-  
-  a {
-    color: rgb(var(--v-theme-primary));
-    text-decoration: underline;
-  }
-}
 </style>

src/components/MessageList.vue

@@ -1,49 +1,100 @@
 <script setup lang="ts">
-import { computed } from 'vue'
+import { computed, onBeforeUnmount, ref } from 'vue'
 import { storeToRefs } from 'pinia'
-import { useMailStore } from '@/stores/mailStore'
+import type { EntityIdentifier } from '@MailManager/types/common'
 import type { EntityObject } from '@MailManager/models'
+import type { CollectionObject } from '@MailManager/models/collection'
+import { messageListDensityConfig, useMailSettingsStore } from '@/stores/mailSettingsStore'
+import RecipientDetails from '@/components/common/RecipientDetails.vue'
+import MessageListItemMenu from '@/components/MessageListItemMenu.vue'
 
-withDefaults(defineProps<{
+// Props
+interface Props {
+  messages: EntityObject[]
+  selectedMessage?: EntityObject | null
+  selectionList?: EntityIdentifier[]
+  selectionMode?: boolean
+  selectedCollection?: CollectionObject | null
   loading?: boolean
-}>(), {
-  loading: false
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  loading: false,
+  selectionList: () => [],
+  selectionMode: false,
 })
 
 // Emits
 const emit = defineEmits<{
-  select: [message: EntityObject]
+  open: [message: EntityObject]
+  reply: [message: EntityObject]
+  forward: [message: EntityObject]
+  move: [message: EntityObject]
+  delete: [message: EntityObject]
+  flag: [message: EntityObject, flag: string, value: boolean]
+  selectionMode: [message: EntityObject]
+  selectionToggleOne: [message: EntityObject]
+  selectionToggleAll: [value: boolean]
+  selectionClear: []
+  selectionMove: []
+  selectionDelete: []
+  selectionFlag: [flag: string, value: boolean]
 }>()
 
-const mailStore = useMailStore()
-const { currentMessages, selectedFolder, selectedMessage } = storeToRefs(mailStore)
+const mailSettingsStore = useMailSettingsStore()
+const { messageListDensity } = storeToRefs(mailSettingsStore)
+const densityConfig = computed(() => messageListDensityConfig[messageListDensity.value])
+
+const longPressTimer = ref<number | null>(null)
+const longPressActivated = ref(false)
+const suppressNextClick = ref(false)
+const contextMenuVisible = ref(false)
+const contextMenuTarget = ref<[number, number] | undefined>(undefined)
+const contextMenuMessage = ref<EntityObject | null>(null)
+const LONG_PRESS_MS = 400
+const selectedIdSet = computed(() => new Set(props.selectionList))
+const selectionCount = computed(() => props.selectionList.length ?? 0)
+
+// Sorted messages (newest first)
+const sortedMessages = computed(() => {
+  return [...props.messages].sort((a, b) => {
+    const dateA = timeStamp(a) ?? 0
+    const dateB = timeStamp(b) ?? 0
+    return dateB - dateA
+  })
+})
+
+const isOpened = (message: EntityObject): boolean => {
+  if (!props.selectedMessage) return false
+  return (message.identifier === props.selectedMessage.identifier)
+}
 
-// Check if message is selected
 const isSelected = (message: EntityObject): boolean => {
-  if (!selectedMessage.value) return false
-  return (
-    message.provider === selectedMessage.value.provider &&
-    message.service === selectedMessage.value.service &&
-    message.collection === selectedMessage.value.collection &&
-    message.identifier === selectedMessage.value.identifier
-  )
+  return selectedIdSet.value.has(message.identifier)
 }
 
-// Check if message is unread
-const isUnread = (message: EntityObject): boolean => {
-  return !message.properties.flags?.read
-}
+const timeStamp = (message: EntityObject): number | null => {
+  const timestamp = message.properties.received
+    || message.properties.sent
+    || message.modified
+    || message.created
+    || null
 
-// Check if message is flagged
-const isFlagged = (message: EntityObject): boolean => {
-  return message.properties.flags?.flagged || false
+  if (!timestamp) {
+    return null
+  }
+
+  const timeValue = new Date(timestamp).getTime()
+  return Number.isNaN(timeValue) ? null : timeValue
 }
 
 // Format date for display
-const formatDate = (date: Date | string | null | undefined): string => {
+const formatDate = (date: Date | string | number | null | undefined): string => {
   if (!date) return ''
   
   const messageDate = new Date(date)
+  if (Number.isNaN(messageDate.getTime())) return ''
+
   const now = new Date()
   const today = new Date(now.getFullYear(), now.getMonth(), now.getDate())
   const yesterday = new Date(today)
@@ -70,6 +121,7 @@ const formatDate = (date: Date | string | null | undefined): string => {
       day: 'numeric' 
     })
   }
+
   
   // Other years - show full date
   return messageDate.toLocaleDateString('en-US', { 
@@ -79,55 +131,232 @@ const formatDate = (date: Date | string | null | undefined): string => {
   })
 }
 
-// Truncate text
-const truncate = (text: string | null | undefined, length: number = 100): string => {
-  if (!text) return ''
-  return text.length > length ? text.substring(0, length) + '...' : text
+const isSelectionControlClick = (event: MouseEvent | KeyboardEvent): boolean => {
+  return event.target instanceof Element && event.target.closest('.message-selection-checkbox, .message-item-menu-trigger, .message-item-menu-content') !== null
 }
 
-// Handle message click
-const handleMessageClick = (message: EntityObject) => {
-  emit('select', message)
+const handleSelectionToggleOne = (message: EntityObject) => {
+  emit('selectionToggleOne', message)
 }
 
-// Sorted messages (newest first)
-const sortedMessages = computed(() => {
-  return [...currentMessages.value].sort((a, b) => {
-    const dateA = a.properties.date ? new Date(a.properties.date).getTime() : 0
-    const dateB = b.properties.date ? new Date(b.properties.date).getTime() : 0
-    return dateB - dateA
-  })
-})
+const handleSelectionToggleAll = (value: boolean | null) => {
+  emit('selectionToggleAll', value === true)
+}
 
-// Read/Unread counts from collection properties
-const unreadCount = computed(() => {
-  return selectedFolder.value?.properties.unread ?? 0
-})
+const handleMouseClick = (event: MouseEvent | KeyboardEvent, message: EntityObject) => {
+  if (isSelectionControlClick(event)) {
+    return
+  }
 
-const totalCount = computed(() => {
-  return selectedFolder.value?.properties.total ?? 0
-})
+  if (suppressNextClick.value) {
+    suppressNextClick.value = false
+    return
+  }
 
-// True only when the collection explicitly provides total/unread counts
-const hasCountData = computed(() => {
-  return selectedFolder.value?.properties.total != null
+  if (event.shiftKey && !props.selectionMode) {
+    event.preventDefault()
+    event.stopPropagation()
+    emit('selectionMode', message)
+    return
+  }
+
+  if (longPressActivated.value) {
+    longPressActivated.value = false
+    return
+  }
+
+  if (props.selectionMode) {
+    emit('selectionToggleOne', message)
+    return
+  }
+
+  emit('open', message)
+}
+
+const handleMouseDown = (event: MouseEvent, message: EntityObject) => {
+  if (isSelectionControlClick(event)) {
+    return
+  }
+
+  if (!event.shiftKey || props.selectionMode) {
+    return
+  }
+
+  event.preventDefault()
+  event.stopPropagation()
+  suppressNextClick.value = true
+  emit('selectionMode', message)
+}
+
+const openContextMenu = (event: MouseEvent, message: EntityObject) => {
+  if (isSelectionControlClick(event)) {
+    return
+  }
+
+  event.preventDefault()
+  event.stopPropagation()
+
+  contextMenuMessage.value = message
+  contextMenuTarget.value = [event.clientX, event.clientY]
+  contextMenuVisible.value = true
+}
+
+const handleContextMenuReply = (message: EntityObject) => {
+  emit('reply', message)
+}
+
+const handleContextMenuForward = (message: EntityObject) => {
+  emit('forward', message)
+}
+
+const handleContextMenuMove = (message: EntityObject) => {
+  emit('move', message)
+}
+
+const handleContextMenuDelete = (message: EntityObject) => {
+  emit('delete', message)
+}
+
+const handleContextMenuFlag = (message: EntityObject, flag: string, value: boolean) => {
+  emit('flag', message, flag, value)
+}
+
+const getContextMenuMessage = (): EntityObject => {
+  return contextMenuMessage.value as EntityObject
+}
+
+const handleTouchStart = (message: EntityObject) => {
+  clearLongPressTimer()
+  longPressActivated.value = false
+
+  longPressTimer.value = window.setTimeout(() => {
+    if (!props.selectionMode) {
+      emit('selectionMode', message)
+    } else {
+      emit('selectionToggleOne', message)
+    }
+
+    longPressActivated.value = true
+    clearLongPressTimer()
+  }, LONG_PRESS_MS)
+}
+
+const handleTouchEnd = () => {
+  clearLongPressTimer()
+}
+
+const handleTouchMove = () => {
+  clearLongPressTimer()
+}
+
+const clearLongPressTimer = () => {
+  if (longPressTimer.value !== null) {
+    window.clearTimeout(longPressTimer.value)
+    longPressTimer.value = null
+  }
+}
+
+const handleFlag = (flag: string, value: boolean) => {
+  if (props.selectionMode && selectionCount.value > 0) {
+    emit('selectionFlag', flag, value)
+  }
+}
+
+const handleRecipientClick = (message: EntityObject) => {
+  if (props.selectionMode) {
+    emit('selectionToggleOne', message)
+    return
+  }
+
+  emit('open', message)
+}
+
+
+onBeforeUnmount(() => {
+  clearLongPressTimer()
 })
 </script>
 
 <template>
   <div class="message-list">
     <!-- Header with folder name and counts -->
-    <div v-if="selectedFolder" class="message-list-header">
-      <h2 class="text-h6">{{ selectedFolder.properties.label || 'Folder' }}</h2>
-      <div class="folder-counts text-caption text-medium-emphasis">
-        <span v-if="hasCountData">
-          <span class="unread-count">{{ unreadCount }}</span>
-          <span class="mx-1">/</span>
-          <span>{{ totalCount }}</span>
-        </span>
-        <span v-else-if="currentMessages.length > 0">
-          {{ currentMessages.length }} loaded
-        </span>
+    <div v-if="selectedCollection" class="message-list-header">
+      <div class="message-list-heading">
+        <h2 class="text-h6">{{ selectedCollection?.properties.label || 'Folder' }}</h2>
+        <div class="folder-counts text-caption text-medium-emphasis">
+          <span v-if="selectedCollection?.properties.total != null">
+            <span class="unread-count">{{ selectedCollection?.properties.unread ?? 0 }}</span>
+            <span class="mx-1">/</span>
+            <span>{{ selectedCollection?.properties.total ?? 0 }}</span>
+          </span>
+          <span v-else-if="messages.length > 0">
+            {{ messages.length }} loaded
+          </span>
+        </div>
+      </div>
+
+      <div v-if="selectionMode && messages.length > 0" class="selection-summary">
+        <div class="selection-controls">
+          <v-checkbox-btn
+            :model-value="selectionCount !== 0"
+            :indeterminate="selectionCount > 0 && selectionCount !== messages.length"
+            density="compact"
+            hide-details
+            @update:model-value="handleSelectionToggleAll"
+          />
+        </div>
+
+        <div class="selection-actions">
+          <v-btn
+            size="small"
+            icon="mdi-folder-move-outline"
+            variant="text"
+            :disabled="selectionCount === 0"
+            @click="emit('selectionMove')"
+          >
+            <v-icon>mdi-folder-move-outline</v-icon>
+            <v-tooltip activator="parent" location="bottom">Move Selected</v-tooltip>
+          </v-btn>
+          <v-btn
+            size="small"
+            icon="mdi-delete-outline"
+            variant="text"
+            :disabled="selectionCount === 0"
+            @click="emit('selectionDelete')"
+          >
+            <v-icon>mdi-delete-outline</v-icon>
+            <v-tooltip activator="parent" location="bottom">Delete Selected</v-tooltip>
+          </v-btn>
+          <v-btn
+            size="small"
+            icon="mdi-email-open-outline"
+            variant="text"
+            :disabled="selectionCount === 0"
+            @click="handleFlag('seen', true)"
+          >
+            <v-icon>mdi-email-open-outline</v-icon>
+            <v-tooltip activator="parent" location="bottom">Mark as Read</v-tooltip>
+          </v-btn>
+          <v-btn
+            size="small"
+            icon="mdi-email-outline"
+            variant="text"
+            :disabled="selectionCount === 0"
+            @click="handleFlag('seen', false)"
+          >
+            <v-icon>mdi-email-outline</v-icon>
+            <v-tooltip activator="parent" location="bottom">Mark as Unread</v-tooltip>
+          </v-btn>
+          <v-btn
+            size="small"
+            icon="mdi-close"
+            variant="text"
+            @click="emit('selectionClear')"
+          >
+            <v-icon>mdi-close</v-icon>
+            <v-tooltip activator="parent" location="bottom">Clear Selected</v-tooltip>
+          </v-btn>
+        </div>
       </div>
     </div>
 
@@ -142,7 +371,7 @@ const hasCountData = computed(() => {
     </div>
 
     <!-- Empty state -->
-    <div v-else-if="currentMessages.length === 0" class="pa-8 text-center">
+    <div v-else-if="messages.length === 0" class="pa-8 text-center">
       <v-icon size="64" color="grey-lighten-1">mdi-email-outline</v-icon>
       <div class="text-h6 mt-4 text-medium-emphasis">No messages</div>
       <div class="text-body-2 text-medium-emphasis">
@@ -154,68 +383,124 @@ const hasCountData = computed(() => {
     <v-virtual-scroll
       v-else
       :items="sortedMessages"
-      :item-height="80"
+      :item-height="densityConfig.itemHeight"
       class="message-virtual-scroll"
     >
       <template v-slot:default="{ item: message }">
         <v-list-item
-          :key="`${message.provider}-${message.service}-${message.collection}-${message.identifier}`"
+          :key="message.identifier"
           class="message-item"
           :class="{
+            'opened': isOpened(message),
             'selected': isSelected(message),
-            'unread': isUnread(message)
+            'selection-mode': selectionMode,
+            'unread': !message.properties.isRead
           }"
-          @click="handleMessageClick(message)"
-          lines="three"
+          @mousedown="handleMouseDown($event, message)"
+          @click="handleMouseClick($event, message)"
+          @contextmenu="openContextMenu($event, message)"
+          @touchstart.passive="handleTouchStart(message)"
+          @touchend="handleTouchEnd"
+          @touchcancel="handleTouchEnd"
+          @touchmove="handleTouchMove"
+          :lines="densityConfig.lines"
         >
           <template v-slot:prepend>
-            <v-avatar size="40" color="primary">
-              <span class="text-white text-body-1">
-                {{ (message.properties.from?.label || message.properties.from?.address || 'U')[0].toUpperCase() }}
-              </span>
-            </v-avatar>
+            <div class="message-item-prepend">
+              <v-checkbox-btn
+                v-if="selectionMode || isSelected(message)"
+                :model-value="isSelected(message)"
+                density="compact"
+                hide-details
+                @click.stop
+                @update:model-value="handleSelectionToggleOne(message)"
+              />
+
+              <v-avatar size="40" color="primary">
+                <span class="text-white text-body-1">
+                  {{ (message.properties.from?.label || message.properties.from?.address || 'U')[0].toUpperCase() }}
+                </span>
+              </v-avatar>
+            </div>
           </template>
 
           <v-list-item-title class="d-flex align-center">
-            <span class="flex-grow-1 text-truncate">
-              {{ message.properties.from?.label || message.properties.from?.address || 'Unknown Sender' }}
+            <span class="message-sender text-truncate">
+              <RecipientDetails
+                :address="message.properties.from"
+                @clicked="handleRecipientClick(message)"
+              >
+                <template #default="{ label }">
+                  <span class="message-person-link text-truncate">{{ label }}</span>
+                </template>
+              </RecipientDetails>
             </span>
-            <span class="text-caption text-medium-emphasis ml-2">
-              {{ formatDate(message.properties.date) }}
+            <span
+              v-if="!densityConfig.showSubjectLine"
+              class="message-inline-subject text-medium-emphasis text-truncate ml-2"
+            >
+              {{ message.properties.subject || '(No subject)' }}
+            </span>
+            <span class="message-date text-caption text-medium-emphasis ml-2">
+              {{ formatDate(timeStamp(message)) }}
             </span>
           </v-list-item-title>
 
-          <v-list-item-subtitle class="text-truncate">
+          <v-list-item-subtitle v-if="densityConfig.showSubjectLine" class="text-truncate">
             {{ message.properties.subject || '(No subject)' }}
           </v-list-item-subtitle>
 
-          <v-list-item-subtitle class="text-caption text-truncate">
-            {{ truncate(message.properties.snippet, 80) }}
+          <v-list-item-subtitle v-if="densityConfig.showThirdLine" class="text-caption text-truncate">
+            {{ '' }}
           </v-list-item-subtitle>
 
           <template v-slot:append>
-            <div class="d-flex flex-column align-center">
-              <v-icon 
-                v-if="isFlagged(message)"
-                size="small"
-                color="warning"
-                class="mb-1"
-              >
-                mdi-star
-              </v-icon>
-              <v-icon 
-                v-if="message.properties.attachments && message.properties.attachments.length > 0"
-                size="small"
-                color="grey"
-              >
-                mdi-paperclip
-              </v-icon>
+            <div class="message-item-append">
+              <div class="d-flex flex-column align-center">
+                <v-icon 
+                  v-if="message.properties.isFlagged"
+                  size="small"
+                  color="warning"
+                  class="mb-1"
+                >
+                  mdi-star
+                </v-icon>
+                <v-icon 
+                  v-if="message.properties.hasAttachments"
+                  size="small"
+                  color="grey"
+                >
+                  mdi-paperclip
+                </v-icon>
+              </div>
+
+              <MessageListItemMenu
+                :message="message"
+                @reply="handleContextMenuReply"
+                @forward="handleContextMenuForward"
+                @move="handleContextMenuMove"
+                @delete="handleContextMenuDelete"
+                @flag="handleContextMenuFlag"
+              />
             </div>
           </template>
         </v-list-item>
         <v-divider />
       </template>
     </v-virtual-scroll>
+
+    <MessageListItemMenu
+      v-if="contextMenuMessage"
+      v-model="contextMenuVisible"
+      :message="getContextMenuMessage()"
+      :target="contextMenuTarget"
+      :show-activator="false"
+      @reply="handleContextMenuReply"
+      @forward="handleContextMenuForward"
+      @move="handleContextMenuMove"
+      @delete="handleContextMenuDelete"
+      @flag="handleContextMenuFlag"
+    />
   </div>
 </template>
 
@@ -232,14 +517,42 @@ const hasCountData = computed(() => {
   background-color: rgb(var(--v-theme-surface));
   flex-shrink: 0;
   display: flex;
-  align-items: center;
+  flex-direction: column;
   gap: 12px;
 
+  .message-list-heading {
+    width: 100%;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+  }
+
   h2 {
     margin: 0;
   }
 }
 
+.selection-summary {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.selection-controls {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.selection-actions {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
 .folder-counts {
   display: flex;
   align-items: center;
@@ -261,19 +574,108 @@ const hasCountData = computed(() => {
   border-left: 3px solid transparent;
 }
 
+.message-item.selection-mode {
+  cursor: default;
+}
+
+.message-item-prepend {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-width: 72px;
+}
+
+.message-item-append {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+@media (hover: hover) {
+  .message-item :deep(.message-item-menu-trigger) {
+    opacity: 0;
+    visibility: hidden;
+    pointer-events: none;
+    transition: opacity 0.2s ease, visibility 0.2s ease;
+  }
+
+  .message-item:hover :deep(.message-item-menu-trigger),
+  .message-item:focus-within :deep(.message-item-menu-trigger),
+  .message-item.opened :deep(.message-item-menu-trigger),
+  .message-item.selected :deep(.message-item-menu-trigger),
+  .message-item :deep(.message-item-menu-trigger[aria-expanded='true']) {
+    opacity: 1;
+    visibility: visible;
+    pointer-events: auto;
+  }
+}
+
 .message-item:hover {
   background-color: rgba(var(--v-theme-on-surface), 0.04);
 }
 
-.message-item.selected {
+.message-item.opened {
   background-color: rgba(var(--v-theme-primary), 0.12);
   border-left-color: rgb(var(--v-theme-primary));
 }
 
+.message-item.selected:not(.opened) {
+  background-color: rgba(var(--v-theme-primary), 0.08);
+}
+
 .message-item.unread {
   :deep(.v-list-item-title),
   :deep(.v-list-item-subtitle:first-of-type) {
     font-weight: 600;
   }
+
+  :deep(.v-list-item-title),
+  :deep(.v-list-item-subtitle:first-of-type),
+  :deep(.v-list-item-title .text-caption) {
+    color: rgb(var(--v-theme-on-surface));
+  }
+}
+
+.message-item.unread:hover {
+  background-color: rgba(var(--v-theme-primary), 0.1);
+}
+
+.message-item.unread.selected:not(.opened) {
+  background-color: rgba(var(--v-theme-primary), 0.14);
+}
+
+.message-sender {
+  flex: 0 1 auto;
+  min-width: 0;
+}
+
+.message-inline-subject {
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
+.message-date {
+  flex-shrink: 0;
+  margin-left: auto;
+}
+
+.message-person-link {
+  display: inline-block;
+  max-width: 100%;
+  border-radius: 4px;
+  padding: 1px 4px;
+  margin: -1px -4px;
+  transition: background-color 0.2s ease;
+}
+
+.message-person-link:hover {
+  background-color: rgba(var(--v-theme-primary), 0.08);
+}
+
+@media (max-width: 960px) {
+  .selection-summary {
+    flex-direction: column;
+    align-items: flex-start;
+  }
 }
 </style>

src/components/MessageListItemMenu.vue

@@ -0,0 +1,138 @@
+<script setup lang="ts">
+import { computed, getCurrentInstance, ref } from 'vue'
+import type { EntityObject } from '@MailManager/models'
+
+interface Props {
+  message: EntityObject
+  modelValue?: boolean
+  target?: [number, number] | undefined
+  showActivator?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  target: undefined,
+  showActivator: true,
+})
+
+const emit = defineEmits<{
+  'update:modelValue': [value: boolean]
+  reply: [message: EntityObject]
+  forward: [message: EntityObject]
+  move: [message: EntityObject]
+  delete: [message: EntityObject]
+  flag: [message: EntityObject, flag: string, value: boolean]
+}>()
+
+const isRead = computed(() => props.message.properties.isRead === true)
+const isFlagged = computed(() => props.message.properties.isFlagged === true)
+const localIsOpen = ref(false)
+const instance = getCurrentInstance()
+const isControlled = computed(() => {
+  const vnodeProps = instance?.vnode.props ?? {}
+
+  return Object.prototype.hasOwnProperty.call(vnodeProps, 'modelValue')
+    || Object.prototype.hasOwnProperty.call(vnodeProps, 'onUpdate:modelValue')
+})
+
+const isOpen = computed({
+  get: () => (isControlled.value ? props.modelValue ?? false : localIsOpen.value),
+  set: (value: boolean) => {
+    if (!isControlled.value) {
+      localIsOpen.value = value
+    }
+
+    emit('update:modelValue', value)
+  },
+})
+
+const handleFlag = (flag: string, value: boolean) => {
+  emit('flag', props.message, flag, value)
+  isOpen.value = false
+}
+
+const handleReply = () => {
+  emit('reply', props.message)
+  isOpen.value = false
+}
+
+const handleForward = () => {
+  emit('forward', props.message)
+  isOpen.value = false
+}
+
+const handleMove = () => {
+  emit('move', props.message)
+  isOpen.value = false
+}
+
+const handleDelete = () => {
+  emit('delete', props.message)
+  isOpen.value = false
+}
+</script>
+
+<template>
+  <v-menu
+    v-model="isOpen"
+    :target="target"
+    :absolute="target !== undefined"
+    :close-on-content-click="true"
+    location="bottom end"
+    content-class="message-item-menu-content"
+  >
+    <template v-if="showActivator" #activator="{ props: menuProps }">
+      <v-btn
+        v-bind="menuProps"
+        class="message-item-menu-trigger"
+        icon="mdi-dots-vertical"
+        size="small"
+        variant="text"
+        @click.stop
+        @mousedown.stop
+      >
+        <v-icon>mdi-dots-vertical</v-icon>
+        <v-tooltip activator="parent" location="bottom">More Actions</v-tooltip>
+      </v-btn>
+    </template>
+
+    <v-list class="message-item-menu" density="compact" min-width="220">
+      <v-list-item
+        :prepend-icon="isRead ? 'mdi-email-outline' : 'mdi-email-open-outline'"
+        @click="handleFlag('seen', !isRead)"
+      >
+        <v-list-item-title>
+          {{ isRead ? 'Mark as unread' : 'Mark as read' }}
+        </v-list-item-title>
+      </v-list-item>
+
+      <v-list-item
+        :prepend-icon="isFlagged ? 'mdi-star' : 'mdi-star-outline'"
+        @click="handleFlag('flagged', !isFlagged)"
+      >
+        <v-list-item-title>
+          {{ isFlagged ? 'Unstar' : 'Star' }}
+        </v-list-item-title>
+      </v-list-item>
+
+      <v-divider class="my-1" />
+
+      <v-list-item prepend-icon="mdi-folder-move-outline" @click="handleMove">
+        <v-list-item-title>Move to...</v-list-item-title>
+      </v-list-item>
+
+      <v-list-item prepend-icon="mdi-reply" @click="handleReply">
+        <v-list-item-title>Reply</v-list-item-title>
+      </v-list-item>
+
+      <v-list-item prepend-icon="mdi-share" @click="handleForward">
+        <v-list-item-title>Forward</v-list-item-title>
+      </v-list-item>
+
+      <v-divider class="my-1" />
+
+      <v-list-item prepend-icon="mdi-delete-outline" @click="handleDelete">
+        <v-list-item-title>Delete</v-list-item-title>
+      </v-list-item>
+    </v-list>
+  </v-menu>
+</template>

src/components/MessageReader.vue

@@ -1,55 +1,50 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
 import { useUser } from '@KTXC'
-import type { EntityObject } from '@MailManager/models'
-import { MessageObject } from '@MailManager/models/message'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import type { EntityObject, MessageObject } from '@MailManager/models'
 import { SecurityLevel } from '@/utile/emailSanitizer'
+import { mediaViewerCanDisplay, mediaViewerComponent } from '@/services/mediaViewer'
+import type { MediaViewerItem } from '@/types/mediaViewer'
 import ReaderEmpty from './reader/ReaderEmpty.vue'
 import ReaderToolbar from './reader/ReaderToolbar.vue'
 import ReaderHeader from './reader/ReaderHeader.vue'
 import ReaderBody from './reader/ReaderBody.vue'
 
 // Props
-interface Props {
-  message?: EntityObject | null
-}
-
-const props = defineProps<Props>()
-
-// User settings
-const { getSetting } = useUser()
+const props = defineProps<{
+  entity: EntityObject | null
+}>()
 
 // Emits
 const emit = defineEmits<{
-  reply: [message: EntityObject]
-  forward: [message: EntityObject]
-  move: [message: EntityObject]
-  delete: [message: EntityObject]
-  flag: [message: EntityObject]
+  reply: [entity: EntityObject]
+  forward: [entity: EntityObject]
+  move: [entity: EntityObject]
+  delete: [entity: EntityObject]
+  flag: [entity: EntityObject]
   compose: []
 }>()
 
+// User settings
+const { getSetting } = useUser()
+const mailUiStore = useMailUiStore()
+
+// Security overrides
+const allowImages = ref(false)
+const overrideSecurityLevel = ref<SecurityLevel | null>(null)
+
+// Viewer state
+const showViewer = ref(false)
+const viewerIndex = ref(0)
+
 // Computed
-const hasMessage = computed(() => !!props.message)
-
-const messageInstance = computed(() => {
-  if (!props.message) return null
-  return new MessageObject(props.message.properties)
-})
-
-const messageBody = computed(() => {
-  if (!messageInstance.value) return ''
-  
-  const htmlContent = messageInstance.value.getHtmlContent()
-  if (htmlContent) return htmlContent
-  
-  const textContent = messageInstance.value.getTextContent()
-  return textContent || ''
+const message = computed<MessageObject | null>(() => {
+  return props.entity?.properties ?? null
 })
 
 const isHtml = computed(() => {
-  if (!messageInstance.value) return false
-  return messageInstance.value.hasHtmlContent()
+  return message.value?.hasHtmlContent() ?? false
 })
 
 // Security preferences from user settings
@@ -61,21 +56,40 @@ const allowImagesDefault = computed(() => {
   return getSetting('mail.security.allowImagesDefault') as boolean || false
 })
 
-// Per-message overrides
-const allowImages = ref(false)
-const overrideSecurityLevel = ref<SecurityLevel | null>(null)
-
 // Computed effective security level (use override if set, otherwise default)
 const effectiveSecurityLevel = computed(() => {
   return overrideSecurityLevel.value ?? securityLevel.value
 })
 
+// Preview state
+const previewDialog = computed(() => mediaViewerComponent('dialog'))
+const previewItems = computed<MediaViewerItem[]>(() => {
+  const attachments = message.value?.attachments ?? []
+  const items: MediaViewerItem[] = []
+  attachments.forEach((attachment, index) => {
+    if (!mediaViewerCanDisplay(attachment.type)) return
+    items.push({
+      id: attachment.partId || attachment.blobId || attachment.cid || `att-${index}`,
+      title: attachment.name || 'Attachment',
+      mime: attachment.type || '',
+      size: attachment.size ?? null,
+      meta: { index, attachment },
+    })
+  })
+  return items
+})
+
 // Reset overrides when message changes
-watch(() => props.message, () => {
+watch(() => props.entity, () => {
   allowImages.value = allowImagesDefault.value
   overrideSecurityLevel.value = null
 })
 
+// Close the viewer when switching messages.
+watch(() => props.entity, () => {
+  showViewer.value = false
+})
+
 // Toggle images for current message only
 const toggleImages = () => {
   allowImages.value = !allowImages.value
@@ -88,52 +102,75 @@ const setSecurityLevel = (level: SecurityLevel) => {
 
 // Handlers
 const handleReply = () => {
-  if (props.message) {
-    emit('reply', props.message)
+  if (props.entity) {
+    emit('reply', props.entity)
   }
 }
 
 const handleForward = () => {
-  if (props.message) {
-    emit('forward', props.message)
+  if (props.entity) {
+    emit('forward', props.entity)
   }
 }
 
 const handleDelete = () => {
-  if (props.message) {
-    emit('delete', props.message)
+  if (props.entity) {
+    emit('delete', props.entity)
   }
 }
 
 const handleMove = () => {
-  if (props.message) {
-    emit('move', props.message)
+  if (props.entity) {
+    emit('move', props.entity)
   }
 }
 
+const handleDownload = async (partIndex?: number) => {
+  if (!props.entity) {
+    return
+  }
+
+  await mailUiStore.downloadMessage(props.entity, partIndex)
+}
+
 const handleFlag = () => {
-  if (props.message) {
-    emit('flag', props.message)
+  if (props.entity) {
+    emit('flag', props.entity)
   }
 }
 
 const handleCompose = () => {
   emit('compose')
 }
+
+const handlePreview = (index: number) => {
+  const pos = previewItems.value.findIndex(item => item.meta.index === index)
+  if (pos < 0) return
+  viewerIndex.value = pos
+  showViewer.value = true
+}
+
+const handleViewerRetrieve = (item: MediaViewerItem): Promise<Blob> => {
+  if (!props.entity) return Promise.reject(new Error('No message selected'))
+  return mailUiStore.attachmentBlob(props.entity, item.meta.attachment)
+}
+
+const handleViewerDownload = (item: MediaViewerItem) => {
+  if (props.entity) mailUiStore.downloadMessage(props.entity, item.meta.index)
+}
 </script>
 
 <template>
   <div class="message-reader">
     <!-- Empty state -->
     <ReaderEmpty 
-      v-if="!hasMessage" 
+      v-if="!message" 
       @compose="handleCompose"
     />
 
     <!-- Message viewer -->
     <template v-else>
       <ReaderToolbar
-        :message="message!"
         :is-html="isHtml"
         :allow-images="allowImages"
         :security-level="effectiveSecurityLevel"
@@ -143,23 +180,40 @@ const handleCompose = () => {
         @move="handleMove"
         @delete="handleDelete"
         @flag="handleFlag"
+        @download="handleDownload"
         @toggle-images="toggleImages"
         @set-security-level="setSecurityLevel"
       />
 
       <!-- Message content -->
       <div class="message-content">
-        <ReaderHeader :message-instance="messageInstance!" />
+        <ReaderHeader
+          :entity="props.entity"
+          @download="handleDownload"
+          @preview="handlePreview"
+        />
         
         <v-divider />
         
         <ReaderBody
-          :message-body="messageBody"
-          :is-html="isHtml"
+          :message="message!"
           :security-level="effectiveSecurityLevel"
           :allow-images="allowImages"
         />
       </div>
+
+      <!-- Inline attachment viewer (provided by the media_viewer module) -->
+      <component
+        :is="previewDialog"
+        v-if="previewDialog"
+        v-model="showViewer"
+        :items="previewItems"
+        :index="viewerIndex"
+        :source="handleViewerRetrieve"
+        :download="handleViewerDownload"
+        :navigation="true"
+        @update:index="viewerIndex = $event"
+      />
     </template>
   </div>
 </template>

src/components/RenameFolderDialog.vue

@@ -1,7 +1,5 @@
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
-import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
-import { CollectionPropertiesObject } from '@MailManager/models/collection'
 import type { CollectionObject } from '@MailManager/models/collection'
 import type { ServiceObject } from '@MailManager/models'
 
@@ -9,23 +7,25 @@ interface Props {
   modelValue: boolean
   service: ServiceObject
   folder: CollectionObject
-  allFolders?: CollectionObject[]
+  parentFolderLabel?: string
+  validateName?: (name: string) => string[]
+  loading?: boolean
+  errorMessage?: string
 }
 
 const props = withDefaults(defineProps<Props>(), {
-  allFolders: () => []
+  parentFolderLabel: 'Root',
+  validateName: () => [],
+  loading: false,
+  errorMessage: '',
 })
 
 const emit = defineEmits<{
   'update:modelValue': [value: boolean]
-  updated: [folder: CollectionObject]
+  confirm: [folderName: string]
 }>()
 
-const collectionsStore = useCollectionsStore()
-
 const folderName = ref('')
-const loading = ref(false)
-const errorMessage = ref('')
 const validationErrors = ref<string[]>([])
 
 const dialogValue = computed({
@@ -37,74 +37,13 @@ const isValid = computed(() => {
   return folderName.value.trim().length > 0 && validationErrors.value.length === 0
 })
 
-const parentFolderLabel = computed(() => {
-  const parentId = props.folder.collection
-  if (parentId === null || parentId === undefined) return 'Root'
-
-  const parent = props.allFolders.find(
-    f =>
-      String(f.identifier) === String(parentId) &&
-      f.provider === props.folder.provider &&
-      String(f.service) === String(props.folder.service)
-  )
-
-  return parent?.properties.label || 'Root'
-})
-
-const validateFolderName = (name: string): string[] => {
-  const errors: string[] = []
-
-  if (!name || name.trim().length === 0) {
-    errors.push('Folder name is required')
-    return errors
-  }
-
-  if (name.length > 255) {
-    errors.push('Folder name too long (max 255 characters)')
-  }
-
-  if (/[<>:"|?*\x00-\x1F]/.test(name)) {
-    errors.push('Folder name contains invalid characters')
-  }
-
-  if (props.service.provider === 'imap' && /[\/\\]/.test(name)) {
-    errors.push('IMAP folder names cannot contain / or \\')
-  }
-
-  if (name !== name.trim()) {
-    errors.push('Folder name cannot have leading or trailing spaces')
-  }
-
-  return errors
-}
-
-const checkDuplicateName = (name: string): boolean => {
-  const parentId = props.folder.collection ?? null
-  return props.allFolders.some(f => {
-    if (String(f.identifier) === String(props.folder.identifier)) return false
-    return (
-      f.properties.label === name &&
-      String(f.collection) === String(parentId) &&
-      f.provider === props.folder.provider &&
-      String(f.service) === String(props.folder.service)
-    )
-  })
-}
-
 watch(folderName, (newName) => {
-  errorMessage.value = ''
-  validationErrors.value = validateFolderName(newName)
-
-  if (validationErrors.value.length === 0 && newName.trim().length > 0 && checkDuplicateName(newName)) {
-    validationErrors.value.push('A folder with this name already exists in this location')
-  }
+  validationErrors.value = props.validateName(newName)
 })
 
 function resetForm() {
   folderName.value = props.folder.properties.label || ''
-  errorMessage.value = ''
   validationErrors.value = []
-  loading.value = false
 }
 
 watch(dialogValue, (isOpen) => {
@@ -114,54 +53,27 @@ watch(dialogValue, (isOpen) => {
 }, { immediate: true })
 
 const handleRename = async () => {
-  const errors = validateFolderName(folderName.value)
+  const errors = props.validateName(folderName.value)
+
   if (errors.length > 0) {
     validationErrors.value = errors
     return
   }
 
-  if (checkDuplicateName(folderName.value)) {
-    validationErrors.value = ['A folder with this name already exists in this location']
-    return
-  }
-
   const newName = folderName.value.trim()
   if (newName === props.folder.properties.label) {
     dialogValue.value = false
     return
   }
 
-  loading.value = true
-  errorMessage.value = ''
-
-  try {
-    const properties = new CollectionPropertiesObject()
-    properties.label = newName
-    properties.rank = props.folder.properties.rank ?? 0
-    properties.subscribed = props.folder.properties.subscribed ?? true
-
-    const updatedFolder = await collectionsStore.update(
-      props.folder.provider,
-      props.folder.service,
-      props.folder.identifier,
-      properties
-    )
-
-    emit('updated', updatedFolder)
-    dialogValue.value = false
-    resetForm()
-  } catch (error: any) {
-    console.error('[RenameFolderDialog] Failed to rename folder:', error)
-    errorMessage.value = error.message || 'Failed to rename folder. Please try again.'
-  } finally {
-    loading.value = false
-  }
+  emit('confirm', newName)
 }
 
 const handleCancel = () => {
   dialogValue.value = false
   resetForm()
 }
+
 </script>
 
 <template>
@@ -179,7 +91,7 @@ const handleCancel = () => {
         <div class="mb-4">
           <div class="text-caption text-medium-emphasis">Account</div>
           <div class="text-body-2">
-            {{ service.label || service.primaryAddress || 'Mail Account' }}
+            {{ service.label || service.primaryAddress?.format() || 'Mail Account' }}
           </div>
         </div>
 

src/components/Sidebar.vue

@@ -0,0 +1,75 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { storeToRefs } from 'pinia'
+import { useDisplay } from 'vuetify'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import FolderView from '@/components/FolderView.vue'
+import type { CollectionObject } from '@MailManager/models/collection'
+
+const display = useDisplay()
+const isMobile = computed(() => display.mdAndDown.value)
+
+const mailUiStore = useMailUiStore()
+const { sidebarVisible, selectedFolder } = storeToRefs(mailUiStore)
+
+const handleCompose = () => mailUiStore.openComposer()
+
+const handleFolderSelect = (folder: CollectionObject) => mailUiStore.selectFolder(folder)
+
+const handleSettingsOpen = () => mailUiStore.settingsOpen()
+</script>
+
+<template>
+  <v-navigation-drawer
+    v-model="sidebarVisible"
+    contained
+    :permanent="sidebarVisible && !isMobile"
+    :temporary="isMobile"
+    width="280"
+    class="mail-sidebar"
+  >
+    <div class="pa-3 pb-0">
+      <!-- Primary action -->
+      <v-btn
+        block
+        color="primary"
+        variant="tonal"
+        prepend-icon="mdi-pencil"
+        class="justify-start"
+        @click="handleCompose"
+      >
+        Compose
+      </v-btn>
+    </div>
+
+    <!-- Folders -->
+    <FolderView
+      :selected-folder="selectedFolder"
+      @select="handleFolderSelect"
+    />
+
+    <!-- Pinned utility footer -->
+    <template #append>
+      <v-divider />
+      <div class="pa-2">
+        <v-btn
+          block
+          variant="text"
+          size="small"
+          prepend-icon="mdi-cog"
+          class="justify-start text-medium-emphasis"
+          @click="handleSettingsOpen"
+        >
+          Settings
+        </v-btn>
+      </div>
+    </template>
+  </v-navigation-drawer>
+</template>
+
+<style scoped>
+.mail-sidebar {
+  border-right: 1px solid rgb(var(--v-border-color));
+  overflow-y: auto;
+}
+</style>

src/components/common/RecipientDetails.vue

@@ -0,0 +1,190 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import { ComposerMode } from '@/types/composer'
+
+interface Props {
+  address?: MessageAddressInterface | null
+}
+
+const props = defineProps<Props>()
+
+// Emits
+const emit = defineEmits<{
+  clicked: []
+}>()
+
+const mailUiStore = useMailUiStore()
+
+const recipientLabel = computed(() => props.address?.label?.trim() || '')
+const recipientAddress = computed(() => props.address?.address?.trim() || '')
+const displayLabel = computed(() => recipientLabel.value || recipientAddress.value || 'Unknown Sender')
+const formattedAddress = computed(() => {
+  if (recipientLabel.value && recipientAddress.value && recipientLabel.value !== recipientAddress.value) {
+    return `${recipientLabel.value} <${recipientAddress.value}>`
+  }
+
+  return recipientAddress.value || recipientLabel.value
+})
+const hasEmail = computed(() => recipientAddress.value.length > 0)
+
+const showCopyResult = (message: string, color: 'success' | 'error') => {
+  mailUiStore.notify(message, color)
+}
+
+const copy = async (value: string, label: string) => {
+  if (!value) {
+    return
+  }
+
+  try {
+    await navigator.clipboard.writeText(value)
+    showCopyResult(`${label} copied`, 'success')
+  } catch (error) {
+    console.error('[Mail][RecipientDetails] Failed to copy text:', error)
+    showCopyResult(`Unable to copy ${label.toLowerCase()}`, 'error')
+  }
+}
+
+const handleCompose = () => {
+  if (!props.address) {
+    return
+  }
+
+  mailUiStore.openComposer(props.address, ComposerMode.Fresh)
+}
+
+const handleClick = () => {
+  emit('clicked')
+}
+</script>
+
+<template>
+  <v-menu
+    :open-on-hover="true"
+    :open-on-click="false"
+    :open-delay="1000"
+    location="bottom start"
+    transition="slide-y-transition"
+  >
+    <template #activator="{ props: activatorProps }">
+      <span
+        v-bind="activatorProps"
+        class="address-activator"
+        @click="handleClick"
+      >
+        <slot
+          :label="displayLabel"
+          :name="recipientLabel"
+          :email="recipientAddress"
+        >
+          {{ displayLabel }}
+        </slot>
+      </span>
+    </template>
+
+    <v-card class="address-card" elevation="8" rounded="lg">
+      <div class="address-card-header">
+        <v-avatar size="40" color="primary">
+          <span class="text-white text-subtitle-2">
+            {{ displayLabel[0]?.toUpperCase() || 'U' }}
+          </span>
+        </v-avatar>
+
+        <div class="address-card-meta">
+          <div class="text-subtitle-2 font-weight-medium">{{ displayLabel }}</div>
+          <div v-if="recipientAddress" class="text-body-2 text-medium-emphasis">{{ recipientAddress }}</div>
+        </div>
+      </div>
+
+      <v-divider class="my-3" />
+
+      <div class="address-card-actions">
+        <v-btn
+          class="address-action-button"
+          size="small"
+          variant="tonal"
+          prepend-icon="mdi-pencil"
+          :disabled="!hasEmail"
+          @click="handleCompose"
+        >
+          Send Email
+        </v-btn>
+        <v-btn
+          class="address-action-button"
+          size="small"
+          variant="text"
+          :disabled="!hasEmail"
+          @click="copy(recipientAddress, 'Email address')"
+        >
+          <v-icon>mdi-content-copy</v-icon>
+          <v-tooltip activator="parent" location="bottom">Copy Email</v-tooltip>
+        </v-btn>
+        <v-btn
+          class="address-action-button"
+          size="small"
+          variant="text"
+          :disabled="!formattedAddress"
+          @click="copy(formattedAddress, 'Address')"
+        >
+          <v-icon>mdi-card-account-details-outline</v-icon>
+          <v-tooltip activator="parent" location="bottom">Copy Address</v-tooltip>
+        </v-btn>
+        <v-btn
+          v-if="recipientLabel"
+          class="address-action-button"
+          size="small"
+          variant="text"
+          @click="copy(recipientLabel, 'Name')"
+        >
+          <v-icon>mdi-account-outline</v-icon>
+          <v-tooltip activator="parent" location="bottom">Copy Name</v-tooltip>
+        </v-btn>
+      </div>
+    </v-card>
+  </v-menu>
+</template>
+
+<style scoped lang="scss">
+.address-activator {
+  display: inline-flex;
+  align-items: center;
+  max-width: 100%;
+}
+
+.address-card {
+  width: min(320px, calc(100vw - 32px));
+  padding: 16px;
+}
+
+.address-card-header {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.address-card-meta {
+  min-width: 0;
+}
+
+.address-card-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.address-card-actions :deep(.address-action-button) {
+  height: 36px;
+  min-height: 36px;
+  width: 36px;
+  min-width: 36px;
+  padding: 0;
+}
+
+.address-card-actions :deep(.address-action-button:first-child) {
+  width: auto;
+  min-width: 0;
+  padding-inline: 12px;
+}
+</style>

src/components/composer/ComposerAttachments.vue

@@ -0,0 +1,43 @@
+<script setup lang="ts">
+import type { ComposerDraftAttachment } from '@/types/composer'
+import { formatFileSize } from '@/utile/format'
+
+interface Props {
+  attachments: Record<string, ComposerDraftAttachment>
+}
+
+defineProps<Props>()
+
+defineEmits<{
+  remove: [identifier: string]
+}>()
+</script>
+
+<template>
+  <div class="composer-attachments px-4 py-3">
+    <div class="text-caption text-medium-emphasis mb-2">Attachments</div>
+    <div class="composer-attachments-list">
+      <v-chip
+        v-for="attachment in Object.values(attachments)"
+        :key="attachment.identifier"
+        size="small"
+        closable
+        class="mr-2 mb-2"
+        @click:close="$emit('remove', attachment.identifier)"
+      >
+        {{ attachment.name }} ({{ formatFileSize(attachment.size) }})
+      </v-chip>
+    </div>
+  </div>
+</template>
+
+<style scoped lang="scss">
+.composer-attachments {
+  border-bottom: 1px solid rgb(var(--v-border-color));
+}
+
+.composer-attachments-list {
+  display: flex;
+  flex-wrap: wrap;
+}
+</style>

src/components/composer/ComposerEditor.vue

@@ -0,0 +1,215 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import type { PropType } from 'vue'
+import { EditorContent, type Editor } from '@tiptap/vue-3'
+
+defineProps({
+  editor: {
+    type: Object as PropType<Editor | null>,
+    default: null,
+  },
+  isBoldActive: {
+    type: Boolean,
+    required: true,
+  },
+  isItalicActive: {
+    type: Boolean,
+    required: true,
+  },
+  isUnderlineActive: {
+    type: Boolean,
+    required: true,
+  },
+  isBulletListActive: {
+    type: Boolean,
+    required: true,
+  },
+  isOrderedListActive: {
+    type: Boolean,
+    required: true,
+  },
+  isLinkActive: {
+    type: Boolean,
+    required: true,
+  },
+})
+
+const emit = defineEmits<{
+  bold: []
+  italic: []
+  underline: []
+  bulletList: []
+  orderedList: []
+  link: []
+  attach: [files: File[]]
+}>()
+
+const fileInput = ref<HTMLInputElement | null>(null)
+
+function openFilePicker() {
+  fileInput.value?.click()
+}
+
+function handleFileChange(event: Event) {
+  const input = event.target as HTMLInputElement | null
+  const files = input?.files ? Array.from(input.files) : []
+  if (files.length > 0) {
+    emit('attach', files)
+  }
+  if (input) {
+    input.value = ''
+  }
+}
+</script>
+
+<template>
+  <v-toolbar density="compact" elevation="0" class="editor-toolbar">
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isBoldActive }"
+      @click="$emit('bold')"
+    >
+      <v-icon>mdi-format-bold</v-icon>
+      <v-tooltip activator="parent" location="bottom">Bold</v-tooltip>
+    </v-btn>
+
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isItalicActive }"
+      @click="$emit('italic')"
+    >
+      <v-icon>mdi-format-italic</v-icon>
+      <v-tooltip activator="parent" location="bottom">Italic</v-tooltip>
+    </v-btn>
+
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isUnderlineActive }"
+      @click="$emit('underline')"
+    >
+      <v-icon>mdi-format-underline</v-icon>
+      <v-tooltip activator="parent" location="bottom">Underline</v-tooltip>
+    </v-btn>
+
+    <v-divider vertical class="mx-2" />
+
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isBulletListActive }"
+      @click="$emit('bulletList')"
+    >
+      <v-icon>mdi-format-list-bulleted</v-icon>
+      <v-tooltip activator="parent" location="bottom">Bullet List</v-tooltip>
+    </v-btn>
+
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isOrderedListActive }"
+      @click="$emit('orderedList')"
+    >
+      <v-icon>mdi-format-list-numbered</v-icon>
+      <v-tooltip activator="parent" location="bottom">Numbered List</v-tooltip>
+    </v-btn>
+
+    <v-divider vertical class="mx-2" />
+
+    <v-btn
+      icon
+      size="small"
+      :class="{ 'v-btn--active': isLinkActive }"
+      @click="$emit('link')"
+    >
+      <v-icon>mdi-link</v-icon>
+      <v-tooltip activator="parent" location="bottom">Link</v-tooltip>
+    </v-btn>
+
+    <v-spacer />
+
+    <input
+      ref="fileInput"
+      type="file"
+      multiple
+      class="sr-only"
+      @change="handleFileChange"
+    >
+
+    <v-btn icon size="small" @click="openFilePicker">
+      <v-icon>mdi-paperclip</v-icon>
+      <v-tooltip activator="parent" location="bottom">Attach Files</v-tooltip>
+    </v-btn>
+  </v-toolbar>
+
+  <v-divider />
+
+  <div class="editor-container">
+    <EditorContent :editor="editor ?? undefined" />
+  </div>
+</template>
+
+<style scoped lang="scss">
+.editor-toolbar {
+  flex-shrink: 0;
+  border-bottom: 1px solid rgb(var(--v-border-color));
+}
+
+.editor-container {
+  flex: 1;
+  overflow-y: auto;
+  background-color: rgb(var(--v-theme-background));
+}
+
+.sr-only {
+  display: none;
+}
+
+.v-btn--active {
+  background-color: rgba(var(--v-theme-primary), 0.12);
+  color: rgb(var(--v-theme-primary));
+}
+
+:deep(.tiptap-editor) {
+  outline: none;
+  min-height: 300px;
+
+  p.is-editor-empty:first-child::before {
+    color: rgb(var(--v-theme-on-surface-variant));
+    content: attr(data-placeholder);
+    float: left;
+    height: 0;
+    pointer-events: none;
+  }
+
+  h1, h2, h3, h4, h5, h6 {
+    line-height: 1.3;
+    margin-top: 1em;
+    margin-bottom: 0.5em;
+  }
+
+  p {
+    margin-bottom: 0.5em;
+  }
+
+  ul, ol {
+    padding-left: 1.5em;
+    margin-bottom: 0.5em;
+  }
+
+  blockquote {
+    border-left: 3px solid rgb(var(--v-border-color));
+    padding-left: 1em;
+    margin-left: 0;
+    margin-bottom: 0.5em;
+    color: rgb(var(--v-theme-on-surface-variant));
+  }
+
+  a {
+    color: rgb(var(--v-theme-primary));
+    text-decoration: underline;
+  }
+}
+</style>

src/components/composer/ComposerRecipients.vue

@@ -0,0 +1,156 @@
+<script setup lang="ts">
+import { useRecipientLookupStore } from '@/stores/mailRecipientsStore'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+
+interface Props {
+  to: MessageAddressInterface[]
+  cc: MessageAddressInterface[]
+  bcc: MessageAddressInterface[]
+  subject: string
+  showCc: boolean
+  showBcc: boolean
+}
+
+defineProps<Props>()
+
+const emit = defineEmits<{
+  'update:to': [value: MessageAddressInterface[]]
+  'update:cc': [value: MessageAddressInterface[]]
+  'update:bcc': [value: MessageAddressInterface[]]
+  'update:subject': [value: string]
+  'toggle:cc': []
+  'toggle:bcc': []
+}>()
+
+const recipientLookup = useRecipientLookupStore()
+
+/**
+ * Normalize combobox entries: typed strings become bare address objects;
+ * picked suggestions are already MessageAddressInterface and pass through.
+ */
+function normalize(entries: (MessageAddressInterface | string)[]): MessageAddressInterface[] {
+  return entries.map(entry =>
+    typeof entry === 'string' ? { address: entry } : entry,
+  )
+}
+
+function chipLabel(item: MessageAddressInterface): string {
+  return item.label ? `${item.label} <${item.address}>` : item.address
+}
+
+function itemTitle(item: MessageAddressInterface): string {
+  return item.label || item.address
+}
+</script>
+
+<template>
+  <div class="composer-fields pa-4">
+    <v-combobox
+      :model-value="to"
+      label="To"
+      chips
+      multiple
+      closable-chips
+      return-object
+      no-filter
+      variant="outlined"
+      density="compact"
+      class="mb-2"
+      :items="recipientLookup.suggestions"
+      :loading="recipientLookup.searching"
+      :item-title="itemTitle"
+      @update:search="recipientLookup.search($event)"
+      @update:model-value="emit('update:to', normalize($event))"
+    >
+      <template #chip="{ item, props: chipProps }">
+        <v-chip v-bind="chipProps">{{ chipLabel(item) }}</v-chip>
+      </template>
+      <template #item="{ item, props: itemProps }">
+        <v-list-item v-bind="itemProps" :subtitle="item.label ? item.address : undefined" />
+      </template>
+      <template #append-inner>
+        <v-btn
+          size="x-small"
+          variant="text"
+          class="mr-1"
+          @click="$emit('toggle:cc')"
+        >
+          Cc
+        </v-btn>
+        <v-btn
+          size="x-small"
+          variant="text"
+          @click="$emit('toggle:bcc')"
+        >
+          Bcc
+        </v-btn>
+      </template>
+    </v-combobox>
+
+    <v-combobox
+      v-if="showCc"
+      :model-value="cc"
+      label="Cc"
+      chips
+      multiple
+      closable-chips
+      return-object
+      no-filter
+      variant="outlined"
+      density="compact"
+      class="mb-2"
+      :items="recipientLookup.suggestions"
+      :loading="recipientLookup.searching"
+      :item-title="itemTitle"
+      @update:search="recipientLookup.search($event)"
+      @update:model-value="emit('update:cc', normalize($event))"
+    >
+      <template #chip="{ item, props: chipProps }">
+        <v-chip v-bind="chipProps">{{ chipLabel(item) }}</v-chip>
+      </template>
+      <template #item="{ item, props: itemProps }">
+        <v-list-item v-bind="itemProps" :subtitle="item.label ? item.address : undefined" />
+      </template>
+    </v-combobox>
+
+    <v-combobox
+      v-if="showBcc"
+      :model-value="bcc"
+      label="Bcc"
+      chips
+      multiple
+      closable-chips
+      return-object
+      no-filter
+      variant="outlined"
+      density="compact"
+      class="mb-2"
+      :items="recipientLookup.suggestions"
+      :loading="recipientLookup.searching"
+      :item-title="itemTitle"
+      @update:search="recipientLookup.search($event)"
+      @update:model-value="emit('update:bcc', normalize($event))"
+    >
+      <template #chip="{ item, props: chipProps }">
+        <v-chip v-bind="chipProps">{{ chipLabel(item) }}</v-chip>
+      </template>
+      <template #item="{ item, props: itemProps }">
+        <v-list-item v-bind="itemProps" :subtitle="item.label ? item.address : undefined" />
+      </template>
+    </v-combobox>
+
+    <v-text-field
+      :model-value="subject"
+      label="Subject"
+      variant="outlined"
+      density="compact"
+      @update:model-value="$emit('update:subject', $event)"
+    />
+  </div>
+</template>
+
+<style scoped lang="scss">
+.composer-fields {
+  flex-shrink: 0;
+}
+</style>

src/components/composer/ComposerSender.vue

@@ -0,0 +1,87 @@
+<script setup lang="ts">
+import type { ComposerSenderIdentity } from '@/types/composer';
+import { computed } from 'vue'
+
+interface Props {
+  modelValue: ComposerSenderIdentity | null
+  options: ComposerSenderIdentity[]
+}
+
+const props = defineProps<Props>()
+
+const emit = defineEmits<{
+  'update:modelValue': [value: ComposerSenderIdentity | null]
+}>()
+
+type SenderListItem = {
+  title: string
+  value: string
+}
+
+const items = computed<SenderListItem[]>(() => {
+  return props.options.map(option => ({
+    title: formatSenderLabel(option.label, option.address),
+    value: option.address,
+  }))
+})
+
+const selectedValue = computed(() => props.modelValue?.address ?? null)
+
+const singleOptionLabel = computed(() => {
+  const onlyOption = props.options[0]
+  return onlyOption ? formatSenderLabel(onlyOption.label, onlyOption.address) : ''
+})
+
+const errorMessages = computed(() => {
+  if (props.options.length === 0) {
+    return ['No send-capable account is available.']
+  }
+
+  return []
+})
+
+function handleUpdate(value: string | null) {
+  const match = value ? props.options.find(o => o.address === value) ?? null : null
+  emit('update:modelValue', match)
+}
+
+function formatSenderLabel(label: string | null | undefined, address: string): string {
+  return label ? `${label} <${address}>` : address
+}
+</script>
+
+<template>
+  <div class="composer-sender px-4 pt-4 pb-0">
+    <v-text-field
+      v-if="options.length === 1"
+      :model-value="singleOptionLabel"
+      label="From"
+      variant="outlined"
+      density="compact"
+      readonly
+      class="mb-2"
+    />
+
+    <v-select
+      v-else
+      :model-value="selectedValue"
+      :items="items"
+      item-title="title"
+      item-value="value"
+      label="From"
+      variant="outlined"
+      density="compact"
+      :error="errorMessages.length > 0"
+      :error-messages="errorMessages"
+      :disabled="options.length === 0"
+      class="mb-2"
+      @update:model-value="handleUpdate"
+    />
+  </div>
+</template>
+
+<style scoped lang="scss">
+.composer-sender {
+  flex-shrink: 0;
+}
+</style>

src/components/composer/ComposerToolbar.vue

@@ -0,0 +1,57 @@
+<script setup lang="ts">
+import { ComposerMode } from '@/types/composer'
+
+interface Props {
+  mode: ComposerMode
+  status: string
+  canSend: boolean
+  sending: boolean
+}
+
+defineProps<Props>()
+
+defineEmits<{
+  close: []
+  send: []
+}>()
+</script>
+
+<template>
+  <v-toolbar density="compact" elevation="0" class="composer-toolbar">
+    <v-btn
+      variant="text"
+      icon="mdi-close"
+      @click="$emit('close')"
+    >
+      <v-icon>mdi-close</v-icon>
+      <v-tooltip activator="parent" location="bottom">Close</v-tooltip>
+    </v-btn>
+
+    <v-toolbar-title>
+      {{ mode === ComposerMode.Reply ? 'Reply' : mode === ComposerMode.Forward ? 'Forward' : 'New Message' }}
+    </v-toolbar-title>
+
+    <v-spacer />
+
+    <span v-if="status" class="text-caption text-medium-emphasis mr-4">
+      {{ status }}
+    </span>
+
+    <v-btn
+      color="primary"
+      :disabled="!canSend"
+      :loading="sending"
+      prepend-icon="mdi-send"
+      @click="$emit('send')"
+    >
+      Send
+    </v-btn>
+  </v-toolbar>
+</template>
+
+<style scoped lang="scss">
+.composer-toolbar {
+  flex-shrink: 0;
+  border-bottom: 1px solid rgb(var(--v-border-color));
+}
+</style>

src/components/reader/ReaderBody.vue

@@ -1,21 +1,37 @@
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
+import type { MessageObject } from '@MailManager/models'
 import { EmailSanitizer, SecurityLevel } from '@/utile/emailSanitizer'
 
 interface Props {
-  messageBody: string
-  isHtml: boolean
+  message: MessageObject
   securityLevel: SecurityLevel
   allowImages: boolean
 }
 
 const props = defineProps<Props>()
 
-// Sanitize HTML content for security
+// Computed
+const displayFrame = ref<HTMLIFrameElement | null>(null)
+
+const isHtml = computed(() => {
+  return props.message.hasHtmlContent()
+})
+
+const messageBody = computed(() => {
+  if (!props.message.hasContent()) return ''
+
+  if (props.message.hasHtmlContent()) {
+    return props.message.getHtmlContent() ?? ''
+  }
+
+  return props.message.getTextContent() ?? ''
+})
+
 const sanitizedMessageBody = computed(() => {
-  if (!props.messageBody || !props.isHtml) return props.messageBody
+  if (!messageBody.value || !isHtml.value) return messageBody.value
   
-  return EmailSanitizer.sanitize(props.messageBody, {
+  return EmailSanitizer.sanitize(messageBody.value, {
     securityLevel: props.securityLevel,
     allowImages: props.allowImages,
     allowExternalLinks: true,
@@ -23,25 +39,22 @@ const sanitizedMessageBody = computed(() => {
   })
 })
 
-// Iframe reference for sandboxed HTML rendering
-const emailFrame = ref<HTMLIFrameElement | null>(null)
-
-// Resize iframe to fit content
-const resizeIframe = () => {
-  if (emailFrame.value?.contentWindow?.document?.body) {
-    const height = emailFrame.value.contentWindow.document.body.scrollHeight
-    emailFrame.value.style.height = `${height + 20}px`
-  }
-}
-
-// Watch for changes to trigger resize
-watch(() => props.messageBody, () => {
+// Watchers
+watch(messageBody, () => {
   setTimeout(resizeIframe, 100)
 })
 
 watch(() => props.allowImages, () => {
   setTimeout(resizeIframe, 100)
 })
+
+// Functions
+const resizeIframe = () => {
+  if (displayFrame.value?.contentWindow?.document?.body) {
+    const height = displayFrame.value.contentWindow.document.body.scrollHeight
+    displayFrame.value.style.height = `${height + 20}px`
+  }
+}
 </script>
 
 <template>
@@ -49,7 +62,7 @@ watch(() => props.allowImages, () => {
     <!-- HTML body (sandboxed iframe) -->
     <iframe
       v-if="isHtml"
-      ref="emailFrame"
+      ref="displayFrame"
       sandbox="allow-same-origin"
       class="html-content-frame"
       :srcdoc="sanitizedMessageBody"

src/components/reader/ReaderHeader.vue

@@ -1,12 +1,69 @@
 <script setup lang="ts">
-import { MessageObject } from '@MailManager/models/message'
+import { computed } from 'vue'
+import RecipientDetails from '@/components/common/RecipientDetails.vue'
+import { formatFileSize } from '@/utile/format'
+import { mediaViewerCanDisplay, mediaViewerComponent } from '@/services/mediaViewer'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import type { EntityObject } from '@MailManager/models';
+import type { MessagePartInterface } from '@MailManager/types/message';
+
+interface AttachmentItem {
+  id: string
+  title: string
+  mime: string
+  size?: number | null
+  meta: { index: number; attachment: MessagePartInterface }
+}
 
 interface Props {
-  messageInstance: MessageObject
+  entity: EntityObject | null
 }
 
 const props = defineProps<Props>()
 
+const emit = defineEmits<{
+  download: [index: number]
+  preview: [index: number]
+}>()
+
+const mailUiStore = useMailUiStore()
+const previewPopover = computed(() => mediaViewerComponent('popover'))
+
+const message = computed(() => {
+  return props.entity?.properties ?? null
+})
+
+const randomKey = computed(() => {
+  return Math.random().toString(36).substring(2, 15)
+})
+
+const attachmentItems = computed<AttachmentItem[]>(() =>
+  (message.value?.attachments ?? []).map((attachment, index) => ({
+    id: attachment.partId || attachment.blobId || attachment.cid || `att-${index}`,
+    title: attachment.name || 'Attachment',
+    mime: attachment.type || '',
+    size: attachment.size ?? null,
+    meta: { index, attachment },
+  })),
+)
+
+const isPreviewable = (attachment: MessagePartInterface): boolean => {
+  return mediaViewerCanDisplay(attachment.type)
+}
+
+const handleAttachmentClick = (attachment: MessagePartInterface, index: number): void => {
+  if (isPreviewable(attachment)) {
+    emit('preview', index)
+  } else {
+    emit('download', index)
+  }
+}
+
+const handleViewerRetrieve = (item: AttachmentItem): Promise<Blob> => {
+  if (!props.entity) return Promise.reject(new Error('No message selected'))
+  return mailUiStore.attachmentBlob(props.entity, item.meta.attachment)
+}
+
 // Format date for display
 const formatDate = (date: Date | string | null | undefined): string => {
   if (!date) return ''
@@ -22,68 +79,92 @@ const formatDate = (date: Date | string | null | undefined): string => {
     hour12: true
   })
 }
-
-// Format file size for display
-const formatFileSize = (bytes: number | undefined): string => {
-  if (!bytes) return ''
-  
-  if (bytes < 1024) return bytes + ' B'
-  if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'
-  return (bytes / (1024 * 1024)).toFixed(1) + ' MB'
-}
 </script>
 
 <template>
   <div class="message-header pa-6">
-    <div class="text-h5 mb-4">{{ messageInstance?.subject || '(No subject)' }}</div>
+    <div class="text-h5 mb-4">{{ message?.subject || '(No subject)' }}</div>
     
     <div class="d-flex align-center mb-3">
       <v-avatar size="48" color="primary" class="mr-3">
         <span class="text-white text-h6">
-          {{ (messageInstance?.from?.label || messageInstance?.from?.address || 'U')[0].toUpperCase() }}
+          {{ (message?.from?.label || message?.from?.address || 'U')[0].toUpperCase() }}
         </span>
       </v-avatar>
       
       <div class="flex-grow-1">
         <div class="text-body-1 font-weight-medium">
-          {{ messageInstance?.from?.label || messageInstance?.from?.address || 'Unknown Sender' }}
+          <RecipientDetails :address="message?.from">
+            <template #default="{ label }">
+              <span class="contact-link">{{ label }}</span>
+            </template>
+          </RecipientDetails>
         </div>
         <div class="text-caption text-medium-emphasis">
-          {{ formatDate(messageInstance?.date) }}
+          {{ formatDate(message?.received || message?.sent) }}
         </div>
       </div>
     </div>
 
     <!-- Recipients -->
-    <div v-if="messageInstance?.to && messageInstance?.to.length > 0" class="text-body-2 mb-1">
+    <div v-if="message?.to && message?.to.length > 0" class="text-body-2 mb-1">
       <span class="text-medium-emphasis">To:</span>
-      {{ messageInstance?.to.map(t => t.label || t.address).join(', ') }}
+      <template v-for="(recipient, index) in message.to" :key="randomKey">
+        <RecipientDetails :address="recipient">
+          <template #default="{ label }">
+            <span class="contact-link">{{ label }}</span>
+          </template>
+        </RecipientDetails>
+        <span v-if="index < message.to.length - 1">, </span>
+      </template>
     </div>
 
-    <div v-if="messageInstance?.cc && messageInstance?.cc.length > 0" class="text-body-2 mb-1">
+    <div v-if="message?.cc && message?.cc.length > 0" class="text-body-2 mb-1">
       <span class="text-medium-emphasis">Cc:</span>
-      {{ messageInstance?.cc.map(c => c.label || c.address).join(', ') }}
+      <template v-for="(recipient, index) in message.cc" :key="randomKey">
+        <RecipientDetails :address="recipient">
+          <template #default="{ label }">
+            <span class="contact-link">{{ label }}</span>
+          </template>
+        </RecipientDetails>
+        <span v-if="index < message.cc.length - 1">, </span>
+      </template>
     </div>
 
     <!-- Attachments -->
-    <div v-if="messageInstance?.attachments && messageInstance?.attachments.length > 0" class="mt-4">
+    <div v-if="message?.attachments && message?.attachments.length > 0" class="mt-4">
       <div class="text-body-2 text-medium-emphasis mb-2">
-        Attachments ({{ messageInstance?.attachments.length }})
+        Attachments ({{ message?.attachments.length }})
       </div>
       <div class="d-flex flex-wrap gap-2">
-        <v-chip
-          v-for="(attachment, index) in messageInstance?.attachments"
-          :key="index"
-          prepend-icon="mdi-paperclip"
-          size="small"
-          variant="outlined"
-          class="attachment-chip"
+        <div
+          v-for="(attachment, index) in message?.attachments"
+          :key="attachment.partId || attachment.blobId || attachment.cid || index"
+          class="attachment-item"
         >
-          <span class="attachment-name">{{ attachment.name || 'Untitled' }}</span>
-          <span v-if="attachment.size" class="text-caption text-medium-emphasis ml-1">
-            ({{ formatFileSize(attachment.size) }})
-          </span>
-        </v-chip>
+          <v-chip
+            :prepend-icon="isPreviewable(attachment) ? 'mdi-eye-outline' : 'mdi-paperclip'"
+            size="small"
+            variant="outlined"
+            class="attachment-chip"
+            :title="isPreviewable(attachment) ? 'Preview' : 'Download'"
+            @click="handleAttachmentClick(attachment, index)"
+          >
+            <span class="attachment-name">{{ attachment.name || 'Untitled' }}</span>
+            <span v-if="attachment.size != null" class="text-caption text-medium-emphasis ml-1">
+              ({{ formatFileSize(attachment.size) }})
+            </span>
+          </v-chip>
+
+          <!-- Hover preview (provided by the media_viewer module) -->
+          <component
+            :is="previewPopover"
+            v-if="previewPopover && isPreviewable(attachment)"
+            :item="attachmentItems[index]"
+            :source="handleViewerRetrieve"
+            @expand="emit('preview', index)"
+          />
+        </div>
       </div>
     </div>
   </div>
@@ -98,8 +179,15 @@ const formatFileSize = (bytes: number | undefined): string => {
   gap: 0.5rem;
 }
 
+.attachment-item {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+}
+
 .attachment-chip {
   max-width: 300px;
+  cursor: pointer;
   
   .attachment-name {
     overflow: hidden;
@@ -107,4 +195,21 @@ const formatFileSize = (bytes: number | undefined): string => {
     white-space: nowrap;
   }
 }
+
+.attachment-error {
+  color: rgb(var(--v-theme-error));
+  margin-top: 0.25rem;
+}
+
+.contact-link {
+  display: inline-block;
+  border-radius: 4px;
+  padding: 1px 4px;
+  margin: -1px -4px;
+  transition: background-color 0.2s ease;
+}
+
+.contact-link:hover {
+  background-color: rgba(var(--v-theme-primary), 0.08);
+}
 </style>

src/components/reader/ReaderToolbar.vue

@@ -1,10 +1,8 @@
 <script setup lang="ts">
 import { computed } from 'vue'
-import type { EntityObject } from '@MailManager/models'
 import { SecurityLevel } from '@/utile/emailSanitizer'
 
 interface Props {
-  message: EntityObject
   isHtml: boolean
   allowImages: boolean
   securityLevel: SecurityLevel
@@ -19,6 +17,7 @@ const emit = defineEmits<{
   move: []
   delete: []
   flag: []
+  download: []
   toggleImages: []
   setSecurityLevel: [level: SecurityLevel]
 }>()
@@ -146,6 +145,24 @@ const currentSecurityLevel = computed(() => {
 
     <v-spacer />
 
+    <v-btn
+      icon="mdi-folder-move-outline"
+      variant="text"
+      @click="emit('move')"
+    >
+      <v-icon>mdi-folder-move-outline</v-icon>
+      <v-tooltip activator="parent" location="bottom">Move To Folder</v-tooltip>
+    </v-btn>
+
+    <v-btn
+      icon="mdi-delete-outline"
+      variant="text"
+      @click="emit('delete')"
+    >
+      <v-icon>mdi-delete-outline</v-icon>
+      <v-tooltip activator="parent" location="bottom">Delete</v-tooltip>
+    </v-btn>
+
     <v-menu>
       <template #activator="{ props: menuProps }">
         <v-btn
@@ -160,15 +177,11 @@ const currentSecurityLevel = computed(() => {
 
       <v-list density="compact">
         <v-list-item
-          prepend-icon="mdi-folder-move-outline"
-          title="Move To Folder"
-          @click="emit('move')"
-        />
-        <v-list-item
-          prepend-icon="mdi-delete-outline"
-          title="Delete"
-          @click="emit('delete')"
-        />
+          prepend-icon="mdi-download"
+          @click="emit('download')"
+        >
+          <v-list-item-title>Download</v-list-item-title>
+        </v-list-item>
       </v-list>
     </v-menu>
   </v-toolbar>

src/components/settings/AccountsSettings.vue

@@ -2,14 +2,14 @@
 import { ref, onMounted } from 'vue'
 import { useServicesStore } from '@MailManager/stores/servicesStore'
 import { AddAccountDialog, EditAccountDialog } from '@MailManager/main'
+import type { ServiceObject } from '@MailManager/models'
 
 const servicesStore = useServicesStore()
 
 // Dialog state
 const showAddDialog = ref(false)
 const showEditDialog = ref(false)
-const editServiceProvider = ref<string>('')
-const editServiceIdentifier = ref<string | number>('')
+const editService = ref<ServiceObject>()
 
 // Load services on mount
 onMounted(async () => {
@@ -22,11 +22,8 @@ const handleAddAccount = () => {
   showAddDialog.value = true
 }
 
-const handleConfigureAccount = (serviceKey: string) => {
-  // Service key is in format "provider:identifier"
-  const [provider, identifier] = serviceKey.split(':')
-  editServiceProvider.value = provider
-  editServiceIdentifier.value = identifier
+const handleConfigureAccount = (service: ServiceObject) => {
+  editService.value = service
   showEditDialog.value = true
 }
 
@@ -51,14 +48,14 @@ const handleAccountSaved = async () => {
         </template>
 
         <v-list-item-title>{{ service.label || 'Unnamed Account' }}</v-list-item-title>
-        <v-list-item-subtitle>{{ service.primaryAddress || service.identifier }}</v-list-item-subtitle>
+        <v-list-item-subtitle>{{ service.primaryAddress?.address || service.identifier }}</v-list-item-subtitle>
 
         <template #append>
           <v-btn
             icon="mdi-cog"
             variant="text"
             size="small"
-            @click="handleConfigureAccount(`${service.provider}:${service.identifier}`)"
+            @click="handleConfigureAccount(service)"
           />
         </template>
       </v-list-item>
@@ -87,10 +84,10 @@ const handleAccountSaved = async () => {
 
     <!-- Edit Account Dialog -->
     <EditAccountDialog
-      v-if="editServiceProvider && editServiceIdentifier"
+      v-if="editService"
       v-model="showEditDialog"
-      :service-provider="editServiceProvider"
-      :service-identifier="editServiceIdentifier"
+      :service-provider="editService.provider"
+      :service-identifier="editService.identifier"
       @saved="handleAccountSaved"
     />
   </div>

src/components/settings/BehaviorSettings.vue

@@ -0,0 +1,44 @@
+<script setup lang="ts">
+import { storeToRefs } from 'pinia'
+import { messageReadDelayOptions, useMailSettingsStore } from '@/stores/mailSettingsStore'
+
+const mailSettingsStore = useMailSettingsStore()
+const { messageReadEnabled, messageReadDelay } = storeToRefs(mailSettingsStore)
+</script>
+
+<template>
+  <div class="pa-4">
+    <h3 class="text-h6 mb-4">Behaviours</h3>
+
+    <v-list>
+      <v-list-item>
+        <v-list-item-title>Mark messages as read automatically</v-list-item-title>
+        <v-list-item-subtitle>
+          Mark a message as read after it stays open for the configured delay
+        </v-list-item-subtitle>
+        <template #append>
+          <v-switch v-model="messageReadEnabled" color="primary" hide-details />
+        </template>
+      </v-list-item>
+
+      <v-list-item>
+        <v-list-item-title>Read delay</v-list-item-title>
+        <v-list-item-subtitle>
+          Choose how long a message must stay open before it is marked as read
+        </v-list-item-subtitle>
+        <template #append>
+          <v-select
+            v-model="messageReadDelay"
+            :items="messageReadDelayOptions"
+            item-title="title"
+            item-value="value"
+            density="compact"
+            variant="outlined"
+            :disabled="!messageReadEnabled"
+            style="width: 180px"
+          />
+        </template>
+      </v-list-item>
+    </v-list>
+  </div>
+</template>

src/components/settings/DisplaySettings.vue

@@ -1,34 +1,30 @@
 <script setup lang="ts">
-import { ref, computed } from 'vue'
-import { useUser } from '@KTXC'
+import { storeToRefs } from 'pinia'
+import {
+  folderViewModeOptions,
+  messageListDensityOptions,
+  messageListWidthOptions,
+  useMailSettingsStore,
+} from '@/stores/mailSettingsStore'
 
-type FolderViewMode = 'tree' | 'page'
-
-const { settings, setSetting } = useUser()
-
-const theme = ref('Auto')
-const showPreview = ref(true)
-const compactMode = ref(false)
-
-const folderViewMode = computed({
-  get: () => {
-    return (settings.value.get('mail.folderViewMode') as FolderViewMode) || 'tree'
-  },
-  set: (value: FolderViewMode) => setSetting('mail.folderViewMode', value)
-})
+const mailSettingsStore = useMailSettingsStore()
+const { folderViewMode, messageListDensity, messageListWidth } = storeToRefs(mailSettingsStore)
 </script>
 
 <template>
   <div class="pa-4">
     <h3 class="text-h6 mb-4">Display Settings</h3>
+
     <v-list>
       <v-list-item>
-        <v-list-item-title>Theme</v-list-item-title>
-        <v-list-item-subtitle>Choose your preferred theme</v-list-item-subtitle>
+        <v-list-item-title>Folder navigation style</v-list-item-title>
+        <v-list-item-subtitle>Choose how folders are displayed</v-list-item-subtitle>
         <template #append>
           <v-select
-            v-model="theme"
-            :items="['Light', 'Dark', 'Auto']"
+            v-model="folderViewMode"
+            :items="folderViewModeOptions"
+            item-value="value"
+            item-title="title"
             density="compact"
             variant="outlined"
             style="width: 150px"
@@ -37,31 +33,28 @@ const folderViewMode = computed({
       </v-list-item>
 
       <v-list-item>
-        <v-list-item-title>Message preview</v-list-item-title>
-        <v-list-item-subtitle>Show message preview in list</v-list-item-subtitle>
-        <template #append>
-          <v-switch v-model="showPreview" color="primary" hide-details />
-        </template>
-      </v-list-item>
-
-      <v-list-item>
-        <v-list-item-title>Compact mode</v-list-item-title>
-        <v-list-item-subtitle>Use compact message list layout</v-list-item-subtitle>
-        <template #append>
-          <v-switch v-model="compactMode" color="primary" hide-details />
-        </template>
-      </v-list-item>
-
-      <v-list-item>
-        <v-list-item-title>Folder navigation style</v-list-item-title>
-        <v-list-item-subtitle>Choose how folders are displayed</v-list-item-subtitle>
+        <v-list-item-title>Message list density</v-list-item-title>
+        <v-list-item-subtitle>Control row height and how much detail is shown</v-list-item-subtitle>
         <template #append>
           <v-select
-            v-model="folderViewMode"
-            :items="[
-              { value: 'tree', title: 'Tree' },
-              { value: 'page', title: 'Page' }
-            ]"
+            v-model="messageListDensity"
+            :items="messageListDensityOptions"
+            item-value="value"
+            item-title="title"
+            density="compact"
+            variant="outlined"
+            style="width: 150px"
+          />
+        </template>
+      </v-list-item>
+
+      <v-list-item>
+        <v-list-item-title>Message list width</v-list-item-title>
+        <v-list-item-subtitle>Set how wide the message list panel is</v-list-item-subtitle>
+        <template #append>
+          <v-select
+            v-model="messageListWidth"
+            :items="messageListWidthOptions"
             item-value="value"
             item-title="title"
             density="compact"

src/components/settings/SettingsDialog.vue

@@ -2,6 +2,7 @@
 import { ref } from 'vue'
 import DisplaySettings from './DisplaySettings.vue'
 import AccountsSettings from './AccountsSettings.vue'
+import BehaviorSettings from './BehaviorSettings.vue'
 import SecuritySettings from './SecuritySettings.vue'
 
 interface Props {
@@ -51,6 +52,10 @@ const handleClose = () => {
             <v-icon start>mdi-palette</v-icon>
             Display
           </v-tab>
+          <v-tab value="behaviour">
+            <v-icon start>mdi-timer-cog-outline</v-icon>
+            Behaviours
+          </v-tab>
           <v-tab value="security">
             <v-icon start>mdi-shield-account</v-icon>
             Security
@@ -68,6 +73,10 @@ const handleClose = () => {
             <DisplaySettings />
           </v-window-item>
 
+          <v-window-item value="behaviour">
+            <BehaviorSettings />
+          </v-window-item>
+
           <v-window-item value="security">
             <SecuritySettings />
           </v-window-item>

src/pages/MailPage.vue

@@ -1,313 +0,0 @@
-<script setup lang="ts">
-import { computed, onMounted } from 'vue'
-import { storeToRefs } from 'pinia'
-import { useDisplay } from 'vuetify'
-import { useModuleStore } from '@KTXC'
-import { useMailStore } from '@/stores/mailStore'
-import type { CollectionObject, EntityObject } from '@MailManager/models'
-import FolderTree from '@/components/FolderTree.vue'
-import MessageList from '@/components/MessageList.vue'
-import MessageReader from '@/components/MessageReader.vue'
-import MessageComposer from '@/components/MessageComposer.vue'
-import FolderSelectionDialog from '@/components/FolderSelectionDialog.vue'
-import SettingsDialog from '@/components/settings/SettingsDialog.vue'
-
-// Vuetify display for responsive behavior
-const display = useDisplay()
-const isMobile = computed(() => display.mdAndDown.value)
-
-// Check if mail manager is available
-const moduleStore = useModuleStore()
-const isMailManagerAvailable = computed(() => {
-  return moduleStore.has('mail_manager') || moduleStore.has('MailManager')
-})
-
-// Mail module store
-const mailStore = useMailStore()
-
-// storeToRefs preserves reactivity for state and computed properties
-const {
-  sidebarVisible,
-  settingsDialogVisible,
-  loading,
-  selectedFolder,
-  selectedMessage,
-  composeMode,
-  composeReplyTo,
-  moveDialogVisible,
-} = storeToRefs(mailStore)
-
-// Complex store/composable objects accessed directly (not simple refs)
-const { mailSync, entitiesStore } = mailStore
-
-// Initialize
-onMounted(async () => {
-  if (!isMailManagerAvailable.value) return
-  await mailStore.initialize()
-})
-
-// Handlers — thin wrappers that delegate to the store
-const handleFolderSelect = (folder: CollectionObject) => mailStore.selectFolder(folder)
-
-const handleMessageSelect = (message: EntityObject) => mailStore.selectMessage(message, isMobile.value)
-
-const handleCompose = (replyTo?: EntityObject) => mailStore.openCompose(replyTo)
-
-const handleComposeClose = () => mailStore.closeCompose()
-
-const handleComposeSent = () => mailStore.afterSent()
-
-const handleReply = (message: EntityObject) => mailStore.openCompose(message)
-
-const handleDelete = (message: EntityObject) => mailStore.deleteMessage(message)
-
-const handleMove = (message: EntityObject) => mailStore.openMoveDialog(message)
-
-const handleMoveConfirm = async (folder: CollectionObject) => {
-  await mailStore.moveMessage(folder)
-}
-
-const handleMoveCancel = () => mailStore.closeMoveDialog()
-
-const toggleSidebar = () => mailStore.toggleSidebar()
-
-const handleSettingsOpen = () => mailStore.openSettings()
-
-const handleFolderCreated = (folder: CollectionObject) => mailStore.notify(`Folder "${folder.properties.label}" created`, 'success')
-</script>
-
-<template>
-  <!-- Manager Unavailable -->
-  <div v-if="!isMailManagerAvailable" class="mail-unavailable">
-    <v-alert
-      type="warning"
-      variant="outlined"
-      class="mail-unavailable-alert"
-    >
-      <v-icon size="64" color="warning" class="mb-6">mdi-email-off-outline</v-icon>
-      <h2 class="text-h5 font-weight-bold mb-4">Mail Manager Not Available</h2>
-      <p>
-        The Mail Manager module is not installed or enabled.
-        This module requires the <strong>mail_manager</strong> module to function properly.
-      </p>
-      <p class="mb-0 mt-2">
-        Please contact your system administrator to install and enable the
-        <code>mail_manager</code> module.
-      </p>
-    </v-alert>
-  </div>
-
-  <!-- Normal UI -->
-  <div v-else class="mail-container">
-    <!-- Top toolbar -->
-    <v-app-bar class="mail-toolbar" elevation="0" density="compact">
-      <v-app-bar-nav-icon 
-        v-if="isMobile" 
-        @click="toggleSidebar"
-      />
-      
-      <v-app-bar-title>Mail</v-app-bar-title>
-      
-      <v-spacer />
-      
-      <v-btn
-        icon="mdi-pencil"
-        @click="handleCompose()"
-        color="primary"
-        variant="text"
-      >
-        <v-icon>mdi-pencil</v-icon>
-        <v-tooltip activator="parent" location="bottom">Compose</v-tooltip>
-      </v-btn>
-      
-      <v-btn
-        icon="mdi-refresh"
-        @click="mailSync.sync()"
-        :loading="mailSync.isRunning && entitiesStore.transceiving"
-        variant="text"
-      >
-        <v-icon>mdi-refresh</v-icon>
-        <v-tooltip activator="parent" location="bottom">
-          Refresh {{ mailSync.lastSync ? `(Last: ${new Date(mailSync.lastSync).toLocaleTimeString()})` : '' }}
-        </v-tooltip>
-      </v-btn>
-      
-      <v-icon 
-        v-if="mailSync.isRunning" 
-        color="success" 
-        size="small"
-        class="ml-2"
-      >
-        mdi-sync
-      </v-icon>
-    </v-app-bar>
-
-    <!-- Main content area -->
-    <div class="mail-content">
-      <!-- Folder tree sidebar -->
-      <v-navigation-drawer
-        v-model="sidebarVisible"
-        :permanent="!isMobile"
-        :temporary="isMobile"
-        width="280"
-        class="mail-sidebar"
-      >
-        <FolderTree
-          :selected-folder="selectedFolder"
-          @select="handleFolderSelect"
-          @folder-created="handleFolderCreated"
-        />
-
-        <template #append>
-          <div class="pa-2">
-            <v-btn
-              block
-              variant="text"
-              prepend-icon="mdi-cog"
-              @click="handleSettingsOpen"
-            >
-              Settings
-            </v-btn>
-          </div>
-        </template>
-      </v-navigation-drawer>
-
-      <!-- Main area with message list and reader -->
-      <div class="mail-main">
-        <div class="mail-wrapper">
-          <!-- Message list panel -->
-          <div class="mail-list-panel">
-            <MessageList
-              :loading="loading"
-              @select="handleMessageSelect"
-            />
-          </div>
-
-          <!-- Reader/Composer panel -->
-          <div class="mail-reader-panel">
-            <MessageComposer
-              v-if="composeMode"
-              :reply-to="composeReplyTo"
-              :folder="selectedFolder"
-              @close="handleComposeClose"
-              @sent="handleComposeSent"
-            />
-            
-            <MessageReader
-              v-else
-              :message="selectedMessage"
-              @reply="handleReply"
-              @move="handleMove"
-              @delete="handleDelete"
-              @compose="handleCompose()"
-            />
-          </div>
-        </div>
-      </div>
-    </div>
-
-    <!-- Settings Dialog -->
-    <SettingsDialog v-model="settingsDialogVisible" />
-
-    <FolderSelectionDialog
-      v-model="moveDialogVisible"
-      :loading="loading"
-      title="Move To"
-      confirm-text="Move"
-      empty-text="No other folders are available in this account."
-      @select="handleMoveConfirm"
-      @cancel="handleMoveCancel"
-    />
-  </div>
-</template>
-
-<style scoped lang="scss">
-.mail-unavailable {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  height: 100vh;
-  padding: 48px;
-  text-align: center;
-  width: 100%;
-}
-
-.mail-unavailable-alert {
-  width: 100%;
-  text-align: left;
-}
-
-.mail-container {
-  display: flex;
-  flex-direction: column;
-  height: 100vh;
-  isolation: isolate;
-}
-
-.mail-toolbar {
-  flex-shrink: 0;
-}
-
-.mail-content {
-  display: flex;
-  flex: 1;
-  overflow: hidden;
-  position: relative;
-}
-
-.mail-sidebar {
-  border-right: 1px solid rgb(var(--v-border-color));
-  overflow-y: auto;
-}
-
-.mail-main {
-  flex: 1;
-  display: flex;
-  overflow: hidden;
-  min-width: 0;
-}
-
-.mail-wrapper {
-  flex: 1;
-  display: flex;
-  overflow: hidden;
-}
-
-.mail-list-panel {
-  width: 320px;
-  min-width: 280px;
-  max-width: 450px;
-  border-right: 1px solid rgb(var(--v-border-color));
-  overflow-y: auto;
-  display: flex;
-  flex-direction: column;
-}
-
-.mail-reader-panel {
-  flex: 1;
-  overflow: hidden;
-  min-height: 0;
-  display: flex;
-  flex-direction: column;
-}
-
-/* Responsive adjustments */
-@media (max-width: 960px) {
-  .mail-wrapper {
-    flex-direction: column;
-  }
-  
-  .mail-list-panel {
-    width: 100%;
-    max-width: 100%;
-    border-right: none;
-    border-bottom: 1px solid rgb(var(--v-border-color));
-    max-height: 50%;
-  }
-  
-  .mail-reader-panel {
-    width: 100%;
-  }
-}
-</style>

src/pages/Main.vue

@@ -0,0 +1,519 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, unref } from 'vue'
+import { storeToRefs } from 'pinia'
+import { useDisplay } from 'vuetify'
+import { useModuleStore } from '@KTXC'
+import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
+import { useMailOperationsStore } from '@/stores/mailOperationsStore'
+import { useMailSettingsStore } from '@/stores/mailSettingsStore'
+import { useMailUiStore } from '@/stores/mailUiStore'
+import type { CollectionObject, EntityObject } from '@MailManager/models'
+import { ComposerMode } from '@/types/composer'
+import MessageList from '@/components/MessageList.vue'
+import MessageReader from '@/components/MessageReader.vue'
+import MessageComposer from '@/components/MessageComposer.vue'
+import CreateFolderDialog from '@/components/CreateFolderDialog.vue'
+import DeleteFolderDialog from '@/components/DeleteFolderDialog.vue'
+import FolderSelectionDialog from '@/components/FolderSelectionDialog.vue'
+import RenameFolderDialog from '@/components/RenameFolderDialog.vue'
+import SettingsDialog from '@/components/settings/SettingsDialog.vue'
+import Sidebar from '@/components/Sidebar.vue'
+
+// Vuetify display for responsive behavior
+const display = useDisplay()
+const isMobile = computed(() => display.mdAndDown.value)
+
+// Check if mail manager is available
+const moduleStore = useModuleStore()
+const isManagerAvailable = computed(() => {
+  return moduleStore.has('mail_manager') || moduleStore.has('MailManager')
+})
+const collectionsStore = useCollectionsStore()
+
+// Mail module store
+const mailOperationsStore = useMailOperationsStore()
+const mailUiStore = useMailUiStore()
+const mailSettingsStore = useMailSettingsStore()
+const { messageListWidth } = storeToRefs(mailSettingsStore)
+
+// storeToRefs preserves reactivity for state and computed properties
+const {
+  loading,
+  selectedMessage,
+  currentMessages,
+} = storeToRefs(mailOperationsStore)
+
+const {
+  settingsDialogVisible,
+  selectedFolder,
+  composerMode,
+  composerSource,
+  composerVisible,
+  selectionList,
+  selectionMode,
+  moveMessagesDialogVisible,
+  moveMessagesDialogService,
+  createFolderDialogVisible,
+  createFolderDialogService,
+  createFolderDialogLoading,
+  createFolderDialogError,
+  renameFolderDialogVisible,
+  renameFolderDialogService,
+  renameFolderDialogFolder,
+  renameFolderDialogLoading,
+  renameFolderDialogError,
+  moveFolderDialogVisible,
+  moveFolderDialogService,
+  deleteFolderDialogVisible,
+  deleteFolderDialogService,
+  deleteFolderDialogFolder,
+  deleteFolderDialogLoading,
+  deleteFolderDialogError,
+} = storeToRefs(mailUiStore)
+
+// Complex store/composable objects accessed directly (not simple refs)
+const { mailSync, entitiesStore } = mailOperationsStore
+
+// Message search (filters the current message list by subject/sender)
+const searchQuery = ref('')
+
+const filteredMessages = computed(() => {
+  const query = (searchQuery.value ?? '').trim().toLowerCase()
+  if (!query) return currentMessages.value
+
+  return currentMessages.value.filter((message: EntityObject) => {
+    const subject = (message.properties.subject || '').toLowerCase()
+    const fromLabel = (message.properties.from?.label || '').toLowerCase()
+    const fromAddress = (message.properties.from?.address || '').toLowerCase()
+    return subject.includes(query) || fromLabel.includes(query) || fromAddress.includes(query)
+  })
+})
+
+const lastSyncLabel = computed(() => {
+  const lastSync = unref(unref(mailSync.lastSync))
+
+  if (!(lastSync instanceof Date)) return ''
+  return `(Last: ${lastSync.toLocaleTimeString()})`
+})
+
+// Initialize
+onMounted(async () => {
+  if (!isManagerAvailable.value) return
+  await mailUiStore.initialize()
+})
+
+// Handlers — thin wrappers that delegate to the store
+const {
+  validateCreateFolderName,
+  validateRenameFolderName,
+} = mailUiStore
+
+const sidebarToggle = () => mailUiStore.sidebarToggle()
+
+const handleFolderSelect = (folder: CollectionObject) => mailUiStore.selectFolder(folder)
+
+const handleFolderCreateConfirm = async (folderName: string) => {
+  try {
+    const mutatedFolder = await mailUiStore.confirmCreateFolder(folderName)
+
+    if (mutatedFolder) {
+      handleFolderSelect(mutatedFolder)
+    }
+  } catch (error: unknown) {
+    console.error('[Mail] Failed to create folder:', error)
+  }
+}
+
+const handleFolderEditConfirm = async (folderName: string) => {
+  try {
+    const mutatedFolder = await mailUiStore.confirmRenameFolder(folderName)
+
+    if (mutatedFolder) {
+      handleFolderSelect(mutatedFolder)
+    }
+  } catch (error: unknown) {
+    console.error('[Mail] Failed to rename folder:', error)
+  }
+}
+
+const handleFolderDeleteConfirm = async () => {
+  try {
+    await mailUiStore.confirmDeleteFolder()
+  } catch (error: unknown) {
+    console.error('[Mail] Failed to delete folder:', error)
+  }
+}
+
+const handleFolderMoveConfirm = async (targetFolder: CollectionObject) => {
+  try {
+    await mailUiStore.confirmMoveFolder(targetFolder)
+  } catch (error: unknown) {
+    console.error('[Mail] Failed to move folder:', error)
+  }
+}
+
+const handleFolderMoveCancel = () => mailUiStore.closeMoveFolderDialog()
+
+
+const handleMessageOpen = (message: EntityObject) => {
+  mailOperationsStore.selectMessage(message)
+
+  if (isMobile.value) {
+    mailUiStore.sidebarHide()
+  }
+}
+
+const handleMessageComposeFresh = () => mailUiStore.openComposer()
+
+const handleMessageComposeReply = (message: EntityObject) => mailUiStore.openComposer(message, ComposerMode.Reply)
+
+const handleMessageComposeForward = (message: EntityObject) => mailUiStore.openComposer(message, ComposerMode.Forward)
+
+const handleMessageComposeClose = () => mailUiStore.closeComposer()
+
+const handleMessageFlag = async (message: EntityObject, flag: string, value: boolean) => {
+  await mailUiStore.flagMessage(message, flag, value)
+}
+
+const handleMessageDelete = async (message: EntityObject) => {
+  await mailUiStore.deleteMessages([message.identifier])
+}
+
+const handleMessageMove = (message: EntityObject) => mailUiStore.openMoveMessagesDialog(message)
+
+const handleMessageMoveConfirm = async (target: CollectionObject) => { await mailUiStore.confirmMoveMessages(target) }
+
+const handleMessageMoveCancel = () => mailUiStore.closeMoveMessagesDialog()
+
+const handleMessageSelectionMode = (message: EntityObject) => mailUiStore.messageSelectionModeActivate(message)
+
+const handleMessageSelectionToggleOne = (message: EntityObject) => mailUiStore.messageSelectionToggleOne(message)
+
+const handleMessageSelectionToggleAll = (value: boolean) => {
+  mailUiStore.messageSelectionToggleAll(value)
+}
+
+const handleMessageSelectionClear = () => mailUiStore.messageSelectionModeDeactivate()
+
+const handleMessageSelectionMove = () => mailUiStore.openMoveMessagesDialog()
+
+const handleMessageSelectionFlag = (flag: string, value: boolean) => mailUiStore.flagSelectedMessages(flag, value)
+
+const handleMessageSelectionDelete = () => mailUiStore.deleteSelectedMessages()
+
+</script>
+
+<template>
+  <!-- Manager Unavailable -->
+  <div v-if="!isManagerAvailable" class="mail-unavailable">
+    <v-alert
+      type="warning"
+      variant="outlined"
+      class="mail-unavailable-alert"
+    >
+      <v-icon size="64" color="warning" class="mb-6">mdi-email-off-outline</v-icon>
+      <h2 class="text-h5 font-weight-bold mb-4">Mail Manager Not Available</h2>
+      <p>
+        The Mail Manager module is not installed or enabled.
+        This module requires the <strong>mail_manager</strong> module to function properly.
+      </p>
+      <p class="mb-0 mt-2">
+        Please contact your system administrator to install and enable the
+        <code>mail_manager</code> module.
+      </p>
+    </v-alert>
+  </div>
+
+  <!-- Normal UI -->
+  <div v-else class="mail-container">
+    <!-- Top toolbar -->
+    <v-toolbar class="mail-toolbar" elevation="0" density="compact">
+      <template #prepend>
+        <v-btn
+          icon="mdi-menu"
+          variant="text"
+          @click="sidebarToggle"
+        />
+      </template>
+
+      <v-toolbar-title class="d-flex align-center">
+        <v-icon size="24" color="primary" class="mr-2">mdi-email</v-icon>
+        <span class="text-subtitle-1 font-weight-bold">Mail</span>
+      </v-toolbar-title>
+
+      <v-spacer />
+
+      <!-- Search -->
+      <v-text-field
+        v-model="searchQuery"
+        density="compact"
+        variant="outlined"
+        placeholder="Search messages..."
+        prepend-inner-icon="mdi-magnify"
+        hide-details
+        single-line
+        clearable
+        class="mail-toolbar-search mx-4"
+      />
+
+      <v-btn
+        icon="mdi-pencil"
+        @click="handleMessageComposeFresh()"
+        color="primary"
+        variant="text"
+      >
+        <v-icon>mdi-pencil</v-icon>
+        <v-tooltip activator="parent" location="bottom">Compose</v-tooltip>
+      </v-btn>
+      
+      <v-btn
+        icon="mdi-refresh"
+        @click="mailSync.sync()"
+        :loading="mailSync.isRunning && entitiesStore.transceiving"
+        variant="text"
+      >
+        <v-icon>mdi-refresh</v-icon>
+        <v-tooltip activator="parent" location="bottom">
+          Refresh {{ lastSyncLabel }}
+        </v-tooltip>
+      </v-btn>
+      
+      <v-icon 
+        v-if="mailSync.isRunning" 
+        color="success" 
+        size="small"
+        class="ml-2"
+      >
+        mdi-sync
+      </v-icon>
+    </v-toolbar>
+
+    <!-- Main content area -->
+    <div class="mail-content">
+      <!-- Folder tree sidebar -->
+      <Sidebar />
+
+      <!-- Main area with message list and reader -->
+      <div class="mail-main">
+        <div class="mail-wrapper">
+          <!-- Message list panel -->
+          <div
+            class="mail-list-panel"
+            :style="{ '--mail-list-width': messageListWidth + '%' }"
+          >
+            <MessageList
+              :messages="filteredMessages"
+              :selected-collection="selectedFolder"
+              :selected-message="selectedMessage"
+              :selection-list="selectionList"
+              :selection-mode="selectionMode"
+              :loading="loading"
+              @open="handleMessageOpen"
+              @reply="handleMessageComposeReply"
+              @forward="handleMessageComposeForward"
+              @move="handleMessageMove"
+              @delete="handleMessageDelete"
+              @flag="handleMessageFlag"
+              @selection-mode="handleMessageSelectionMode"
+              @selection-toggle-one="handleMessageSelectionToggleOne"
+              @selection-toggle-all="handleMessageSelectionToggleAll"
+              @selection-clear="handleMessageSelectionClear"
+              @selection-flag="handleMessageSelectionFlag"
+              @selection-move="handleMessageSelectionMove"
+              @selection-delete="handleMessageSelectionDelete"
+            />
+          </div>
+
+          <!-- Reader/Composer panel -->
+          <div class="mail-reader-panel">
+            <MessageComposer
+              v-if="composerVisible"
+              :mode="composerMode"
+              :source="composerSource"
+              :folder="selectedFolder"
+              @close="handleMessageComposeClose"
+            />
+            
+            <MessageReader
+              v-else
+              :entity="selectedMessage"
+              @compose="handleMessageComposeFresh"
+              @reply="handleMessageComposeReply"
+              @forward="handleMessageComposeForward"
+              @move="handleMessageMove"
+              @delete="handleMessageDelete"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Settings Dialog -->
+    <SettingsDialog v-model="settingsDialogVisible" />
+
+    <FolderSelectionDialog
+      v-if="moveMessagesDialogService"
+      v-model="moveMessagesDialogVisible"
+      :service="moveMessagesDialogService"
+      :loading="loading"
+      title="Move Messages To"
+      confirm-text="Move"
+      empty-text="No other folders are available in this account."
+      @select="handleMessageMoveConfirm"
+      @cancel="handleMessageMoveCancel"
+    />
+
+    <FolderSelectionDialog
+      v-if="moveFolderDialogService"
+      v-model="moveFolderDialogVisible"
+      :service="moveFolderDialogService"
+      :loading="collectionsStore.transceiving"
+      title="Move Folder To"
+      confirm-text="Move"
+      empty-text="No other folders are available in this account."
+      :disabled-folder-keys="mailUiStore.moveFolderDialogInvalidFolderKeys"
+      @select="handleFolderMoveConfirm"
+      @cancel="handleFolderMoveCancel"
+    />
+
+    <CreateFolderDialog
+      v-if="createFolderDialogService"
+      v-model="createFolderDialogVisible"
+      :service="createFolderDialogService"
+      :parent-folder-label="mailUiStore.createFolderDialogParentLabel"
+      :validate-name="validateCreateFolderName"
+      :loading="createFolderDialogLoading"
+      :error-message="createFolderDialogError"
+      @confirm="handleFolderCreateConfirm"
+    />
+
+    <RenameFolderDialog
+      v-if="renameFolderDialogService && renameFolderDialogFolder"
+      v-model="renameFolderDialogVisible"
+      :service="renameFolderDialogService"
+      :folder="renameFolderDialogFolder"
+      :parent-folder-label="mailUiStore.renameFolderDialogParentLabel"
+      :validate-name="validateRenameFolderName"
+      :loading="renameFolderDialogLoading"
+      :error-message="renameFolderDialogError"
+      @confirm="handleFolderEditConfirm"
+    />
+
+    <DeleteFolderDialog
+      v-if="deleteFolderDialogService && deleteFolderDialogFolder"
+      v-model="deleteFolderDialogVisible"
+      :service="deleteFolderDialogService"
+      :folder="deleteFolderDialogFolder"
+      :loading="deleteFolderDialogLoading"
+      :error-message="deleteFolderDialogError"
+      @confirm="handleFolderDeleteConfirm"
+    />
+  </div>
+</template>
+
+<style scoped lang="scss">
+.mail-unavailable {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  min-height: 0;
+  padding: 48px;
+  text-align: center;
+  width: 100%;
+}
+
+.mail-unavailable-alert {
+  width: 100%;
+  text-align: left;
+}
+
+.mail-container {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  min-height: 0;
+  isolation: isolate;
+}
+
+.mail-toolbar {
+  flex-shrink: 0;
+  border-bottom: 1px solid rgb(var(--v-border-color)) !important;
+}
+
+.mail-toolbar-search {
+  max-width: 300px;
+}
+
+@media (max-width: 960px) {
+  .mail-toolbar-search {
+    max-width: 180px;
+    margin-inline: 8px !important;
+  }
+}
+
+.mail-content {
+  display: flex;
+  flex: 1;
+  min-height: 0;
+  overflow: hidden;
+  position: relative;
+}
+
+.mail-main {
+  flex: 1;
+  min-height: 0;
+  display: flex;
+  overflow: hidden;
+  min-width: 0;
+}
+
+.mail-wrapper {
+  flex: 1;
+  min-height: 0;
+  min-width: 0;
+  display: flex;
+  overflow: hidden;
+}
+
+.mail-list-panel {
+  flex: 0 0 var(--mail-list-width, 35%);
+  width: var(--mail-list-width, 35%);
+  min-width: 280px;
+  max-width: 70%;
+  border-right: 1px solid rgb(var(--v-border-color));
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+}
+
+.mail-reader-panel {
+  flex: 1;
+  overflow: hidden;
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+}
+
+/* Responsive adjustments */
+@media (max-width: 960px) {
+  .mail-wrapper {
+    flex-direction: column;
+  }
+  
+  .mail-list-panel {
+    flex: 0 0 auto;
+    width: 100%;
+    max-width: 100%;
+    border-right: none;
+    border-bottom: 1px solid rgb(var(--v-border-color));
+    max-height: 50%;
+  }
+  
+  .mail-reader-panel {
+    width: 100%;
+  }
+}
+</style>

src/routes.ts

@@ -2,10 +2,11 @@ const routes = [
   {
     name: 'mail',
     path: '/',
-    component: () => import('@/pages/MailPage.vue'),
+    component: () => import('@/pages/Main.vue'),
     meta: {
       title: 'Mail',
-      requiresAuth: true
+      requiresAuth: true,
+      layout: 'fixed'
     }
   },
 ]

src/services/compositionService.ts

@@ -0,0 +1,71 @@
+import { createFetchWrapper } from '@KTXC'
+import type { ApiRequest, ApiResponse } from '@MailManager/types/common'
+import type {
+  CompositionAttachmentAddRequest,
+  CompositionAttachmentAddResponse,
+  CompositionAttachmentRemoveRequest,
+  CompositionAttachmentRemoveResponse,
+  CompositionDiscardRequest,
+  CompositionDiscardResponse,
+  CompositionPatchRequest,
+  CompositionPatchResponse,
+  CompositionSendRequest,
+  CompositionSendResponse,
+  CompositionStageRequest,
+  CompositionStageResponse,
+} from '@/types/composition'
+
+const fetchWrapper = createFetchWrapper()
+const API_URL = '/m/mail/compose/v1'
+const API_VERSION = 1
+
+function generateTransactionId(): string {
+  return `${Date.now()}-${Math.random().toString(36).substring(2, 9)}`
+}
+
+async function post<TRequest, TResponse>(operation: string, data: TRequest): Promise<TResponse> {
+  const request: ApiRequest<TRequest> = {
+    version: API_VERSION,
+    transaction: generateTransactionId(),
+    operation,
+    data,
+  }
+
+  const response: ApiResponse<TResponse> = await fetchWrapper.post(API_URL, request)
+
+  if (response.status === 'error') {
+    const errorMessage = `[${operation}] ${response.data.message}${response.data.code ? ` (code: ${response.data.code})` : ''}`
+    throw new Error(errorMessage)
+  }
+
+  return response.data
+}
+
+const compositionService = {
+  async stage(request: CompositionStageRequest): Promise<CompositionStageResponse> {
+    return await post<CompositionStageRequest, CompositionStageResponse>('stage', request)
+  },
+
+  async patch(request: CompositionPatchRequest): Promise<CompositionPatchResponse> {
+    return await post<CompositionPatchRequest, CompositionPatchResponse>('patch', request)
+  },
+
+  async discard(request: CompositionDiscardRequest): Promise<CompositionDiscardResponse> {
+    return await post<CompositionDiscardRequest, CompositionDiscardResponse>('discard', request)
+  },
+
+  async send(request: CompositionSendRequest): Promise<CompositionSendResponse> {
+    return await post<CompositionSendRequest, CompositionSendResponse>('send', request)
+  },
+
+  async attachmentAdd(request: CompositionAttachmentAddRequest): Promise<CompositionAttachmentAddResponse> {
+    return await post<CompositionAttachmentAddRequest, CompositionAttachmentAddResponse>('attachment.add', request)
+  },
+
+  async attachmentRemove(request: CompositionAttachmentRemoveRequest): Promise<CompositionAttachmentRemoveResponse> {
+    return await post<CompositionAttachmentRemoveRequest, CompositionAttachmentRemoveResponse>('attachment.remove', request)
+  }
+  
+}
+
+export default compositionService

src/services/mediaViewer.ts

@@ -0,0 +1,48 @@
+/**
+ * mediaViewer — bridges the Mail UI to the standalone media_viewer module
+ */
+
+import { defineAsyncComponent } from 'vue'
+import { useIntegrationStore } from '@KTXC'
+
+const MEDIA_VIEWER_FORMAT_POINT = 'media_viewer_format'
+const MEDIA_VIEWER_POINT = 'media_viewer'
+
+function mimeMatchesPattern(mime: string, pattern: string): boolean {
+  if (pattern.endsWith('/*')) {
+    return mime.startsWith(pattern.slice(0, -1))
+  }
+  return mime === pattern
+}
+
+function mimeMatchesViewer(mime: string, mimeTypes?: string[], mimePatterns?: string[]): boolean {
+  if (mimeTypes?.includes(mime)) return true
+  if (mimePatterns) {
+    for (const pattern of mimePatterns) {
+      if (mimeMatchesPattern(mime, pattern)) return true
+    }
+  }
+  return false
+}
+
+/** True if a leaf viewer is registered for this MIME type. */
+export function mediaViewerCanDisplay(mime: string | null | undefined): boolean {
+  if (!mime) return false
+  const viewers = useIntegrationStore().getItems(MEDIA_VIEWER_FORMAT_POINT)
+  return viewers.some(viewer =>
+    mimeMatchesViewer(
+      mime,
+      viewer.meta?.mimeTypes as string[] | undefined,
+      viewer.meta?.mimePatterns as string[] | undefined,
+    ),
+  )
+}
+
+export function mediaViewerComponent(type: 'dialog' | 'popover' = 'dialog') {
+  // The integration store prefixes ids with the module handle
+  // (e.g. 'media_viewer.dialog'), so match on the suffix.
+  const entry = useIntegrationStore().getItems(MEDIA_VIEWER_POINT).find(i => i.id.endsWith(`.${type}`))
+  return entry?.component
+    ? defineAsyncComponent(entry.component as () => Promise<unknown>)
+    : null
+}

src/services/recipientService.ts

@@ -0,0 +1,110 @@
+/**
+ * Recipient service
+ */
+
+import { entityService } from '@PeopleManager/services'
+import { GroupObject, IndividualObject, OrganizationObject, type EntityObject } from '@PeopleManager/models'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+
+/** Minimum query length before a lookup is worthwhile. */
+const MIN_QUERY_LENGTH = 3
+
+/** Default cap on the number of matches returned. */
+const DEFAULT_LIMIT = 10
+
+/**
+ * Derive a human-readable display name from a contact's properties.
+ */
+function displayName(properties: IndividualObject | OrganizationObject | GroupObject): string {
+  if (properties.label) {
+    return properties.label
+  }
+
+  if (properties instanceof IndividualObject) {
+    const parts = [properties.names?.given, properties.names?.family].filter(Boolean)
+    if (parts.length > 0) {
+      return parts.join(' ')
+    }
+  } else if (properties instanceof OrganizationObject) {
+    if (properties.names?.full) {
+      return properties.names.full
+    }
+  }
+
+  return ''
+}
+
+/**
+ * Flatten a contact entity into one recipient per email address.
+ * Groups (no addressable email) are skipped.
+ */
+function toRecipients(entity: EntityObject): MessageAddressInterface[] {
+  const properties = entity.properties
+
+  if (properties instanceof GroupObject) {
+    return []
+  }
+
+  const emails = properties.emails
+  if (!emails) {
+    return []
+  }
+
+  const label = displayName(properties)
+  const recipients: MessageAddressInterface[] = []
+
+  for (const email of Object.values(emails)) {
+    const address = email?.address?.trim()
+    if (!address) {
+      continue
+    }
+    recipients.push({ address, label: label || address })
+  }
+
+  return recipients
+}
+
+export const recipientService = {
+  /**
+   * Search the user's contacts for recipients matching a query.
+   *
+   * @param query - free-text fragment matched against contact names
+   * @param limit - maximum number of recipients to return
+   *
+   * @returns De-duplicated recipients (one per email address)
+   */
+  async search(query: string, limit: number = DEFAULT_LIMIT): Promise<MessageAddressInterface[]> {
+    const trimmed = query.trim()
+    if (trimmed.length < MIN_QUERY_LENGTH) {
+      return []
+    }
+
+    const recipients: MessageAddressInterface[] = []
+    const seen = new Set<string>()
+
+    try {
+      // The "*" attribute defaults to LIKE, so a scalar string is all that is
+      // needed; range caps the scan to the first `limit` matches.
+      await entityService.listStream(
+        { filter: { '*': trimmed }, range: { type: 'tally', anchor: 'absolute', position: 0, tally: limit } },
+        (entity: EntityObject) => {
+          for (const recipient of toRecipients(entity)) {
+            const key = recipient.address.toLowerCase()
+            if (seen.has(key)) {
+              continue
+            }
+            seen.add(key)
+            recipients.push(recipient)
+          }
+        },
+      )
+    } catch (error: any) {
+      console.error('[Mail][Recipient Service] - Search failed:', error)
+      return []
+    }
+
+    return recipients.slice(0, limit)
+  },
+}
+
+export default recipientService

src/stores/mailCompositionStore.ts

@@ -0,0 +1,563 @@
+import { computed, ref } from 'vue'
+import { defineStore } from 'pinia'
+import { useServicesStore } from '@MailManager/stores/servicesStore'
+import { useMailUiStore } from './mailUiStore'
+import compositionService from '@/services/compositionService'
+import type {
+  CompositionAttachmentAddRequest,
+  CompositionAttachmentInterface,
+  CompositionAttachmentRemoveRequest,
+  CompositionPatchRequest,
+  CompositionStageRequest,
+  CompositionStageResponse,
+} from '@/types/composition'
+import { ComposerMode } from '@/types/composer'
+import type { ComposerDraft, ComposerDraftAttachment, ComposerDraftMessage, ComposerSenderIdentity } from '@/types/composer'
+import { EntityObject, MessageAddressObject, ServiceObject } from '@MailManager/models'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+
+export const useMailCompositionStore = defineStore('mailCompositionStore', () => {
+  const servicesStore = useServicesStore()
+  const mailUiStore = useMailUiStore()
+  
+  const activeDraft = ref<ComposerDraft | null>(null)
+  const saving = ref(false)
+
+  let autoSaveTimer: ReturnType<typeof setTimeout> | null = null
+
+  const stageStatus = computed(() => {
+    if (!activeDraft.value) {
+      return ''
+    }
+
+    if (saving.value) {
+      return 'Saving...'
+    }
+
+    if (activeDraft.value.stageStatus === 'local') {
+      return 'Local draft only'
+    }
+
+    if (!activeDraft.value.stagedAt) {
+      return ''
+    }
+
+    const seconds = Math.floor((Date.now() - activeDraft.value.stagedAt.getTime()) / 1000)
+    if (seconds < 60) {
+      return 'Staged just now'
+    }
+    if (seconds < 3600) {
+      return `Staged ${Math.floor(seconds / 60)} min ago`
+    }
+
+    return `Staged at ${activeDraft.value.stagedAt.toLocaleTimeString()}`
+  })
+
+  const senderIdentities = computed(() => {
+    const identities: ComposerSenderIdentity[] = []
+    
+    servicesStore.servicesEnabled.forEach(service => {
+      if (!service.capable('EntityTransmit') || service.identifier === null) {
+        return
+      }
+
+      if (service.primaryAddress && !service.primaryAddress.empty) {
+        identities.push({
+          service: service,
+          address: service.primaryAddress.address,
+          label: service.primaryAddress.label ?? null,
+        })
+      }
+
+      service.secondaryAddresses.forEach(addr => {
+        identities.push({
+          service: service,
+          address: addr.address,
+          label: addr.label,
+        })
+      })
+    })
+    
+    return identities
+  })
+
+  function openDraft(mode: ComposerMode, source?: EntityObject | MessageAddressObject | null) {
+
+    let sender = null
+
+    // find sending identity from source message recipients if possible
+    if (source instanceof EntityObject) {
+      const sourceMessage = source.properties
+      const recipients = [...(sourceMessage.to || []), ...(sourceMessage.cc || []), ...(sourceMessage.bcc || [])]
+
+      const matchingRecipient = recipients.find(recipient => {
+        return senderIdentities.value.some(identity => identity.address === recipient.address)
+      })
+
+      if (matchingRecipient) {
+        sender = senderIdentities.value.find(identity => identity.address === matchingRecipient.address) ?? null
+      }
+    }
+
+    // find sending identity from currently selected folder service if possible
+    if (sender === null) {
+      const serviceId = mailUiStore.selectedFolder?.service
+      sender = senderIdentities.value.find(identity =>
+        serviceId === `${identity.service.provider}:${identity.service.identifier}`
+      ) ?? null
+    }
+
+    // fallback to first available identity
+    if (sender === null) {
+      sender = senderIdentities.value[0]
+    }
+
+    if (sender === null) {
+      return
+    }
+
+    activeDraft.value = buildDraft(mode, sender, source)
+    activeDraft.value.action = mode
+
+    stageDraft()
+  }
+
+  function closeDraft() {
+    return discardDraft()
+  }
+
+  async function stageDraft() {
+    if (!activeDraft.value) {
+      return null
+    }
+
+    saving.value = true
+    try {
+      const request: CompositionStageRequest = {
+        identifier: activeDraft.value.identifier,
+        action: activeDraft.value.action,
+        sender: {
+          provider: activeDraft.value.sender.service.provider,
+          service: activeDraft.value.sender.service.identifier,
+          address: activeDraft.value.sender.address,
+          name: activeDraft.value.sender.label || null,
+        },
+        source: activeDraft.value.source,
+        message: activeDraft.value.message,
+      }
+
+      const response = await compositionService.stage(request)
+      applyStageResponse(response)
+    } catch (error) {
+      console.error('[Mail][Composer] Failed to stage draft:', error)
+      throw error
+    } finally {
+      saving.value = false
+    }
+  }
+
+  async function patchDraft() {
+    if (!activeDraft.value) {
+      return null
+    }
+
+    saving.value = true
+    try {
+      const request: CompositionPatchRequest = {
+        identifier: activeDraft.value.identifier,
+        revision: activeDraft.value.revision,
+        sender: {
+          provider: activeDraft.value.sender.service.provider,
+          service: activeDraft.value.sender.service.identifier,
+          address: activeDraft.value.sender.address,
+          name: activeDraft.value.sender.label || null,
+        },
+        message: activeDraft.value.message,
+      }
+
+      const response = await compositionService.patch(request)
+
+      return response
+    } catch (error) {
+      console.error('[Mail][Composer] Failed to patch draft:', error)
+      throw error
+    } finally {
+      saving.value = false
+    }
+  }
+
+  async function discardDraft() {
+    if (!activeDraft.value) {
+      return
+    }
+
+    const draftId = activeDraft.value.identifier
+    try {
+      await compositionService.discard({ identifier: draftId })
+    } catch (error) {
+      console.error('[Mail][Composer] Failed to discard staged draft:', error)
+    } finally {
+      activeDraft.value = null
+    }
+  }
+
+  async function sendDraft() {
+    if (!activeDraft.value) {
+      return
+    }
+    
+    try {
+      const response = await compositionService.send({ 
+        identifier: activeDraft.value.identifier,
+        revision: activeDraft.value.revision,
+        sender: {
+          provider: activeDraft.value.sender.service.provider,
+          service: activeDraft.value.sender.service.identifier,
+          address: activeDraft.value.sender.address,
+          name: activeDraft.value.sender.label || null,
+        },
+        message: activeDraft.value.message,
+        attachments: activeDraft.value.attachments,
+      })
+
+      if (response.disposition === 'error') {
+        console.error('[Mail][Composer] Failed to send message:', response.error)
+        mailUiStore.notify(`Failed to send message: ${response.error?.message || 'Unknown error'}`, 'error')
+        return
+      }
+
+      activeDraft.value = null
+      mailUiStore.notify('Message sent successfully', 'success')
+      mailUiStore.closeComposer()
+    } catch (error) {
+      console.error('[Mail][Composer] Failed to send draft:', error)
+      throw error
+    }
+  }
+
+  function updateRecipients(field: 'to' | 'cc' | 'bcc', values: MessageAddressInterface[]) {
+    if (!activeDraft.value) {
+      return
+    }
+
+    activeDraft.value.message[field] = [...values]
+    queueSave(false)
+  }
+
+  function updateSubject(subject: string) {
+    if (!activeDraft.value) {
+      return
+    }
+
+    activeDraft.value.message.subject = subject
+    queueSave(false)
+  }
+
+  function updateBody(body: ComposerDraftMessage['body']) {
+    if (!activeDraft.value) {
+      return
+    }
+
+    activeDraft.value.message.body = {
+      html: body.html,
+      text: body.text,
+    }
+    queueSave(false)
+  }
+
+  function updateSender(sender: ComposerSenderIdentity) {
+    if (!activeDraft.value) {
+      return
+    }
+
+    activeDraft.value.sender = sender
+    queueSave(false)
+  }
+
+  async function addAttachments(files: File[]) {
+    if (!activeDraft.value || files.length === 0) {
+      return
+    }
+
+    const composition = activeDraft.value.identifier
+    const attachments = Object.fromEntries(
+      await Promise.all(files.map(async file => {
+        const identifier = createIdentifier()
+        const data = await fileToBase64(file)
+
+        return [identifier, {
+          identifier,
+          composition,
+          origin: 'upload',
+          name: file.name,
+          type: file.type || 'application/octet-stream',
+          size: file.size,
+          source: null,
+          data,
+        } satisfies CompositionAttachmentInterface]
+      })),
+    )
+
+    const request: CompositionAttachmentAddRequest = {
+      composition,
+      attachments,
+    }
+
+    const response = await compositionService.attachmentAdd(request)
+
+    if (!activeDraft.value || response.composition !== activeDraft.value.identifier) {
+      return
+    }
+
+    if (response.disposition === 'error') {
+      console.error('[Mail][Composer] Failed to add attachments:', response.error)
+      return
+    }
+
+    Object.values(response.attachments).forEach(attachment => {
+      activeDraft.value!.attachments[attachment.identifier] = {
+        identifier: attachment.identifier,
+        composition: attachment.composition,
+        origin: attachment.origin,
+        name: attachment.name,
+        type: attachment.type,
+        size: attachment.size,
+        source: attachment.source,
+      }
+    })
+  }
+
+  async function removeAttachment(identifier: string) {
+    if (!activeDraft.value) {
+      return
+    }
+
+    const attachment = activeDraft.value.attachments[identifier]
+    if (!attachment) {
+      return
+    }
+
+    const request: CompositionAttachmentRemoveRequest = {
+      composition: attachment.composition,
+      identifier: attachment.identifier,
+    }
+
+    const response = await compositionService.attachmentRemove(request)
+
+    if (response.disposition === 'error') {
+      console.error('[Mail][Composer] Failed to remove attachment:', response.error)
+    }
+    
+    delete activeDraft.value.attachments[attachment.identifier]
+  }
+
+  function queueSave(immediate: boolean) {
+    if (!activeDraft.value) {
+      return
+    }
+    activeDraft.value.revision += 1
+
+    if (autoSaveTimer) {
+      clearTimeout(autoSaveTimer)
+    }
+
+    autoSaveTimer = setTimeout(() => {
+      void flushSave()
+    }, immediate ? 0 : 15000)
+  }
+
+  async function flushSave() {
+    if (autoSaveTimer) {
+      clearTimeout(autoSaveTimer)
+      autoSaveTimer = null
+    }
+    if (!activeDraft.value) {
+      return
+    }
+    
+    await patchDraft()
+  }
+
+  function applyStageResponse(response: CompositionStageResponse) {
+    const draft = activeDraft.value
+    if (!draft) {
+      return
+    }
+
+    if (response.identifier !== draft.identifier) {
+      console.warn('[Mail][Composer] Stage response identifier mismatch:', response.identifier, draft.identifier)
+      return
+    }
+
+    if (response.revision < draft.revision) {
+      console.warn('[Mail][Composer] Stage response revision is older than current draft:', response.revision, draft.revision)
+      return
+    }
+
+    draft.attachments = {}
+    Object.values(response.attachments).forEach(attachment => {
+      draft.attachments[attachment.identifier] = {
+        identifier: attachment.identifier,
+        composition: attachment.composition,
+        origin: attachment.origin,
+        name: attachment.name,
+        type: attachment.type,
+        size: attachment.size,
+        source: attachment.source,
+      }
+    })
+
+    draft.revision = response.revision
+    draft.stageStatus = response.disposition
+    draft.stagedAt = new Date()
+  }
+
+  return {
+    activeDraft,
+    saving,
+    stageStatus,
+    senderIdentities,
+    openDraft,
+    closeDraft,
+    sendDraft,
+    updateSender,
+    updateRecipients,
+    updateSubject,
+    updateBody,
+    addAttachments,
+    removeAttachment,
+    flushSave,
+  }
+})
+
+function buildDraft(
+  mode: ComposerMode,
+  sender: ComposerSenderIdentity,
+  source?: EntityObject | MessageAddressObject | null,
+): ComposerDraft {
+  const composition = createIdentifier()
+  const freshMessage = buildMessage(mode, source)
+  const freshAttachments = buildAttachments(composition, mode, source)
+  const sourceIdentifier = source instanceof EntityObject ? source.identifier : null
+  return {
+    action: mode,
+    identifier: composition,
+    revision: 1,
+    sender: sender,
+    source: sourceIdentifier,
+    stageStatus: 'local',
+    stagedAt: null,
+    message: freshMessage,
+    attachments: freshAttachments,
+  }
+}
+
+function buildMessage(
+  mode: ComposerMode,
+  source: EntityObject | MessageAddressObject | null | undefined,
+): ComposerDraftMessage {
+  
+  if (!source) {
+    return emptyMessage()
+  }
+  
+  if (mode === ComposerMode.Fresh) {
+    const freshMessage = emptyMessage()
+
+    if (source && source instanceof MessageAddressObject) {
+      freshMessage.to = [{ address: source.address, label: source.label }]
+    }
+
+    return freshMessage
+  }
+
+  if (!(source instanceof EntityObject)) {
+    return emptyMessage()
+  }
+
+  const sourceMessage = source.properties
+  const originalSubject = sourceMessage.subject || ''
+  const originalBody = sourceMessage.getHtmlContent() || sourceMessage.getTextContent() || ''
+  const senderName = sourceMessage.from?.label || sourceMessage.from?.address || 'Unknown'
+  const sentAt = sourceMessage.sent || source.created || ''
+  const sentLabel = sentAt ? new Date(sentAt).toLocaleString() : 'an unknown time'
+
+  if (mode === ComposerMode.Reply) {
+    const replyToAddr = sourceMessage.replyTo?.[0] ?? sourceMessage.from ?? null
+    const replyToAddress = replyToAddr?.address || ''
+    return {
+      to: replyToAddress ? [{ address: replyToAddress, label: replyToAddr?.label }] : [],
+      cc: [],
+      bcc: [],
+      subject: /^Re:/i.test(originalSubject) ? originalSubject : `Re: ${originalSubject}`,
+      body: {
+        html: `<p><br></p><p>---------- Original message ---------</p><p>From: ${senderName}</p><p>Date: ${sentLabel}</p><p>Subject: ${originalSubject}</p><blockquote>${originalBody}</blockquote>`,
+        text: '',
+      },
+    }
+  }
+
+  return {
+    to: [],
+    cc: [],
+    bcc: [],
+    subject: /^Fwd:/i.test(originalSubject) ? originalSubject : `Fwd: ${originalSubject}`,
+    body: {
+      html: `<p><br></p><p>---------- Forwarded message ---------</p><p>From: ${senderName}</p><p>Date: ${sentLabel}</p><p>Subject: ${originalSubject}</p><blockquote>${originalBody}</blockquote>`,
+      text: '',
+    },
+  }
+}
+
+function buildAttachments(composition: string, mode: ComposerMode, source?: EntityObject | MessageAddressObject | null): Record<string, ComposerDraftAttachment> {
+  if (mode === ComposerMode.Fresh || mode === ComposerMode.Reply || !(source instanceof EntityObject)) {
+    return {}
+  }
+
+  const sourceAttachments = source.properties.attachments || []
+  const attachments: Record<string, ComposerDraftAttachment> = {}
+  sourceAttachments.forEach(attachment => {
+    const id = createIdentifier()
+    attachments[id] = {
+      identifier: id,
+      composition: composition,
+      origin: 'source',
+      name: attachment.name || '',
+      type: attachment.type || 'application/octet-stream',
+      size: attachment.size || 0,
+      source: source.identifier,
+    }
+  })
+  return attachments
+}
+
+function emptyMessage(): ComposerDraftMessage {
+  return {
+    to: [],
+    cc: [],
+    bcc: [],
+    subject: '',
+    body: {
+      html: '',
+      text: '',
+    },
+  }
+}
+
+function createIdentifier(): string {
+  if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') {
+    return crypto.randomUUID()
+  }
+
+  return `${Date.now()}-${Math.random().toString(36).slice(2, 10)}`
+}
+
+async function fileToBase64(file: File): Promise<string> {
+  const buffer = await file.arrayBuffer()
+  let binary = ''
+  const bytes = new Uint8Array(buffer)
+  for (let index = 0; index < bytes.byteLength; index += 1) {
+    binary += String.fromCharCode(bytes[index])
+  }
+  return btoa(binary)
+}

src/stores/mailOperationsStore.ts

@@ -0,0 +1,624 @@
+import { ref, computed, shallowRef } from 'vue'
+import { defineStore } from 'pinia'
+import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
+import { useEntitiesStore } from '@MailManager/stores/entitiesStore'
+import { useServicesStore } from '@MailManager/stores/servicesStore'
+import { useMailSync } from '@MailManager/composables/useMailSync'
+import type { ServiceIdentifier, CollectionIdentifier, EntityIdentifier } from '@MailManager/types/common'
+import type { EntityTransmitRequest, EntityBlobSelector } from '@MailManager/types/entity'
+import type { MessageAddressInterface, MessageInterface, MessagePartInterface } from '@MailManager/types/message'
+import { ServiceObject, type CollectionObject, type EntityObject } from '@MailManager/models'
+import { CollectionPropertiesObject } from '@MailManager/models/collection'
+
+interface ComposerMessageInput {
+  to: string[]
+  cc: string[]
+  bcc: string[]
+  subject: string
+  body: {
+    html: string
+    text: string
+  }
+}
+
+export const useMailOperationsStore = defineStore('mailOperationsStore', () => {
+  const servicesStore = useServicesStore()
+  const collectionsStore = useCollectionsStore()
+  const entitiesStore = useEntitiesStore()
+
+  // Background mail sync
+  const mailSyncController = useMailSync({
+    interval: 30000,
+    autoStart: false,
+    fetchDetails: true,
+  })
+  const mailSync = {
+    isRunning: mailSyncController.isRunning,
+    lastSync: mailSyncController.lastSync,
+    error: mailSyncController.error,
+    sync: mailSyncController.sync,
+    start: mailSyncController.start,
+    stop: mailSyncController.stop,
+    restart: mailSyncController.restart,
+  }
+
+  // ── General State ─────────────────-───────────────────────────────────────
+  const loading = ref(false)
+  const serviceFolderLoadingState = ref<Record<string, boolean>>({})
+  const serviceFolderLoadedState = ref<Record<string, boolean>>({})
+  const serviceFolderErrorState = ref<Record<string, string | null>>({})
+
+  const selectedFolder = shallowRef<CollectionObject | null>(null)
+  const selectedMessage = shallowRef<EntityObject | null>(null)
+  const composerSaving = ref(false)
+  const composerSending = ref(false)
+  const composerLastSaved = ref<Date | null>(null)
+  const composerDraftIdentifier = ref<EntityIdentifier | null>(null)
+
+  // ── Computed ──────────────────────────────────────────────────────────────
+  const currentMessages = computed(() => {
+    if (!selectedFolder.value) return []
+
+    const folder = selectedFolder.value
+
+    return entitiesStore.entities.filter(e =>
+      e.provider === folder.provider &&
+      String(e.service) === String(folder.service) &&
+      String(e.collection) === String(folder.identifier),
+    )
+  })
+
+  // ── Initialization ────────────────────────────────────────────────────────
+
+  async function initialize() {
+    loading.value = true
+    try {
+      await servicesStore.list()
+
+      const services = [...servicesStore.servicesEnabled]
+      await Promise.all(services.map(service => loadFoldersForService(service)))
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to initialize:', error)
+    } finally {
+      loading.value = false
+    }
+  }
+
+  async function loadFoldersForService(service: ServiceObject) {
+    
+    if (service.identifier === null) {
+      return
+    }
+    
+    _setServiceFolderLoading(service.provider, service.identifier, true)
+    _setServiceFolderError(service.provider, service.identifier, null)
+
+    try {
+      // retrieve folders for service
+      await collectionsStore.collectionsForService(service.provider, service.identifier, true)
+
+      _setServiceFolderLoaded(service.provider, service.identifier, true)
+
+      _updateSyncSources()
+    } catch (error) {
+      const message = error instanceof Error ? error.message : 'Failed to load folders'
+      _setServiceFolderError(service.provider, service.identifier, message)
+      console.error(`[Mail][Operations] Failed to load folders for ${service.provider}:${String(service.identifier)}:`, error)
+      _updateSyncSources()
+      return {}
+    } finally {
+      _setServiceFolderLoading(service.provider, service.identifier, false)
+    }
+  }
+
+  // ── Helpers ──────────────────────────────────────────────────────────
+
+  function _serviceIdentifier(item: ServiceObject | CollectionObject | EntityObject | { provider: string, service: string | number }): ServiceIdentifier {
+    if (item instanceof ServiceObject) {
+      return `${item.provider}:${String(item.identifier)}` as ServiceIdentifier
+    }
+    return `${item.provider}:${String(item.service)}` as ServiceIdentifier
+  }
+
+  function _sameCollection(left: CollectionObject | null | undefined, right: CollectionObject | null | undefined): boolean {
+    if (!left || !right) {
+      return false
+    }
+
+    return left.provider === right.provider &&
+      String(left.service) === String(right.service) &&
+      String(left.identifier) === String(right.identifier)
+  }
+
+  function _setServiceFolderLoading(provider: string, service: string | number, loadingState: boolean) {
+    serviceFolderLoadingState.value = {
+      ...serviceFolderLoadingState.value,
+      [_serviceIdentifier({ provider, service })]: loadingState,
+    }
+  }
+
+  function _setServiceFolderLoaded(provider: string, service: string | number, loaded: boolean) {
+    serviceFolderLoadedState.value = {
+      ...serviceFolderLoadedState.value,
+      [_serviceIdentifier({ provider, service })]: loaded,
+    }
+  }
+
+  function _setServiceFolderError(provider: string, service: string | number, error: string | null) {
+    serviceFolderErrorState.value = {
+      ...serviceFolderErrorState.value,
+      [_serviceIdentifier({ provider, service })]: error,
+    }
+  }
+
+  function _updateSyncSources() {
+    mailSyncController.clearSources()
+
+    // Track the currently selected folder
+    if (selectedFolder.value) {
+      mailSyncController.addSource(selectedFolder.value.identifier)
+    }
+
+    // Always track inboxes for each account (for new-mail notifications)
+    servicesStore.servicesEnabled.forEach(service => {
+      if (service.identifier === null) {
+        return
+      }
+      const inboxes = collectionsStore.collectionsForService(service.provider, service.identifier).filter(
+        c =>
+          String(c.service) === String(service.identifier) &&
+          (c.properties.role === 'inbox' ||
+            String(c.identifier).toLowerCase() === 'inbox'),
+      )
+
+      inboxes.forEach(inbox => mailSyncController.addSource(inbox.identifier))
+    })
+
+    if (mailSyncController.sources.value.length > 0 && !mailSyncController.isRunning.value) {
+      mailSyncController.start()
+    }
+  }
+
+  function isServiceFolderLoading(provider: string, service: string | number) {
+    return serviceFolderLoadingState.value[_serviceIdentifier({ provider, service })] === true
+  }
+
+  function hasServiceFoldersLoaded(provider: string, service: string | number) {
+    return serviceFolderLoadedState.value[_serviceIdentifier({ provider, service })] === true
+  }
+
+  function getServiceFolderError(provider: string, service: string | number) {
+    return serviceFolderErrorState.value[_serviceIdentifier({ provider, service })] ?? null
+  }
+
+  function _findDraftFolder(folder: CollectionObject): CollectionObject {
+    return collectionsStore.collectionsForService(folder.provider, folder.service).find(
+      candidate =>
+        candidate.provider === folder.provider &&
+        String(candidate.service) === String(folder.service) &&
+        (candidate.properties.role === 'drafts' ||
+          String(candidate.identifier).toLowerCase() === 'drafts' ||
+          candidate.properties.label.toLowerCase() === 'drafts'),
+    ) ?? folder
+  }
+
+  function _toMessageAddresses(addresses: string[]): MessageAddressInterface[] | undefined {
+    const normalized = addresses
+      .map(address => address.trim())
+      .filter(address => address.length > 0)
+
+    if (normalized.length === 0) {
+      return undefined
+    }
+
+    return normalized.map(address => ({ address }))
+  }
+
+  function _toDraftBody(body: ComposerMessageInput['body']): MessagePartInterface | null {
+    const parts: MessagePartInterface[] = []
+    const text = body.text.trim()
+    const html = body.html.trim()
+
+    if (text.length > 0) {
+      parts.push({
+        type: 'text/plain',
+        content: text,
+      })
+    }
+
+    if (html.length > 0) {
+      parts.push({
+        type: 'text/html',
+        content: html,
+      })
+    }
+
+    if (parts.length === 0) {
+      return null
+    }
+
+    if (parts.length === 1) {
+      return parts[0]
+    }
+
+    return {
+      type: 'multipart/alternative',
+      subParts: parts,
+    }
+  }
+
+  function _toDraftProperties(message: ComposerMessageInput): MessageInterface {
+    return {
+      '@type': 'mail:message',
+      to: _toMessageAddresses(message.to),
+      cc: _toMessageAddresses(message.cc),
+      bcc: _toMessageAddresses(message.bcc),
+      subject: message.subject.trim() || null,
+      body: _toDraftBody(message.body),
+      flags: {
+        draft: true,
+      },
+    }
+  }
+
+  function resetComposerState() {
+    composerSaving.value = false
+    composerSending.value = false
+    composerLastSaved.value = null
+    composerDraftIdentifier.value = null
+  }
+
+  // ── Actions ───────────────────────────────────────────────────────────────
+
+  async function retrieveService(identifier: ServiceIdentifier, force: boolean = false): Promise<ServiceObject | null> {
+    let service = servicesStore.serviceByIdentifier(identifier)
+    if (service && !force) {
+      return service
+    }
+
+    try {
+      service = await servicesStore.serviceByIdentifier(identifier, true)
+    } catch (error) {
+      console.error(`[Mail][Operations] Failed to retrieve service ${identifier}:`, error)
+      throw error
+    }
+
+    if (!service) {
+      const message = `Service ${identifier} not found`
+      console.error(`[Mail][Operations] ${message}`)
+      throw new Error(message)
+    }
+
+    return service
+  }
+
+  async function selectFolder(folder: CollectionObject | null) {
+    selectedFolder.value = folder
+    selectedMessage.value = null
+
+    if (folder) {
+      try {
+        await entitiesStore.list([folder.identifier])
+      } catch (error) {
+        console.error('[Mail][Operations] Failed to load messages:', error)
+      }
+    }
+
+    _updateSyncSources()
+  }
+
+  function selectMessage(entity: EntityObject | null) {
+    selectedMessage.value = entity
+  }
+
+  async function saveComposerDraft(folder: CollectionObject, message: ComposerMessageInput) {
+    composerSaving.value = true
+
+    try {
+      const targetFolder = _findDraftFolder(folder)
+      const properties = _toDraftProperties(message)
+      const draft = composerDraftIdentifier.value
+        ? await entitiesStore.update(composerDraftIdentifier.value, properties)
+        : await entitiesStore.create(targetFolder.identifier, properties)
+
+      composerDraftIdentifier.value = draft.identifier
+      composerLastSaved.value = new Date()
+
+      return draft
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to save draft:', error)
+      throw error
+    } finally {
+      composerSaving.value = false
+    }
+  }
+
+  function findFoldersByRole(role: string): CollectionObject[] {
+    const normalizedRole = role.toLowerCase()
+
+    return servicesStore.servicesEnabled.flatMap(service => {
+      if (service.identifier === null) {
+        return []
+      }
+
+      return collectionsStore.collectionsForService(service.provider, service.identifier).filter(
+        folder =>
+          folder.provider === service.provider &&
+          String(folder.service) === String(service.identifier) &&
+          (folder.properties.role === normalizedRole ||
+            String(folder.identifier).toLowerCase() === normalizedRole),
+      )
+    })
+  }
+
+  async function sendComposerMessage(message: ComposerMessageInput) {
+    composerSending.value = true
+
+    const transmitRequest: EntityTransmitRequest = {
+      message: {
+        to: message.to.map(address => address.trim()).filter(address => address.length > 0),
+        cc: message.cc.map(address => address.trim()).filter(address => address.length > 0),
+        bcc: message.bcc.map(address => address.trim()).filter(address => address.length > 0),
+        subject: message.subject,
+        body: {
+          html: message.body.html,
+          text: message.body.text,
+        },
+      },
+    }
+
+    if (transmitRequest.message.cc?.length === 0) {
+      delete transmitRequest.message.cc
+    }
+
+    if (transmitRequest.message.bcc?.length === 0) {
+      delete transmitRequest.message.bcc
+    }
+
+    try {
+      const response = await entitiesStore.transmit(transmitRequest)
+
+      if (composerDraftIdentifier.value) {
+        try {
+          await entitiesStore.delete([composerDraftIdentifier.value])
+        } catch (error) {
+          console.error('[Mail][Operations] Failed to delete draft after send:', error)
+        }
+      }
+
+      resetComposerState()
+      return response
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to send message:', error)
+      throw error
+    } finally {
+      composerSending.value = false
+    }
+  }
+
+  async function createFolder(service: ServiceObject, label: string, parentFolder: CollectionObject | null = null): Promise<CollectionObject> {
+    if (service.identifier === null) {
+      throw new Error('Cannot create folder for a service without an identifier')
+    }
+
+    const properties = new CollectionPropertiesObject()
+    properties.label = label.trim()
+    properties.rank = 0
+    properties.subscribed = true
+
+    const newFolder = await collectionsStore.create(
+      service.provider,
+      service.identifier,
+      properties,
+      parentFolder?.identifier,
+    )
+
+    return newFolder
+  }
+
+  async function renameFolder(folder: CollectionObject, label: string): Promise<CollectionObject> {
+    const properties = new CollectionPropertiesObject()
+    properties.label = label.trim()
+    properties.rank = folder.properties.rank ?? 0
+    properties.subscribed = folder.properties.subscribed ?? true
+
+    const updatedFolder = await collectionsStore.update(folder.identifier, properties)
+
+    if (_sameCollection(selectedFolder.value, folder)) {
+      selectedFolder.value = updatedFolder
+    }
+
+    return updatedFolder
+  }
+
+  async function moveFolder(source: CollectionObject, target: CollectionObject): Promise<CollectionObject> {
+    const movedFolder = await collectionsStore.move(target.identifier, source.identifier)
+
+    if (_sameCollection(selectedFolder.value, source)) {
+      selectedFolder.value = movedFolder
+    }
+
+    return movedFolder
+  }
+
+  async function deleteFolder(folder: CollectionObject): Promise<CollectionObject | boolean> {
+    const deletedFolder = await collectionsStore.delete(folder.identifier)
+
+    if (_sameCollection(selectedFolder.value, folder)) {
+      await selectFolder(null)
+    }
+
+    return deletedFolder
+  }
+
+  async function deleteMessages(entityIdentifiers: EntityIdentifier[]) {
+    if (entityIdentifiers.length === 0) {
+      return null
+    }
+
+    loading.value = true
+
+    try {
+      return await entitiesStore.delete(entityIdentifiers)
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to delete messages:', error)
+      throw error
+    } finally {
+      loading.value = false
+    }
+  }
+
+  async function flagMessages(entityIdentifiers: EntityIdentifier[], flags: Partial<NonNullable<MessageInterface['flags']>>) {
+    if (entityIdentifiers.length === 0) {
+      return null
+    }
+
+    try {
+      const patch = entitiesStore.fresh().properties
+      patch.flags = flags
+
+      return await entitiesStore.patch(patch, entityIdentifiers)
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to update messages:', error)
+      throw error
+    }
+  }
+
+  async function moveMessages(target: CollectionObject, entityIdentifiers: EntityIdentifier[]) {
+    const { movableIdentifiers, sourceCollections } = entityIdentifiers.reduce(
+      (accumulator, identifier) => {
+        const entity = entitiesStore.entity(identifier)
+
+        if (!entity) {
+          return accumulator
+        }
+
+        // Only allow moving messages within the same service and disallow moving into the same folder
+        const canMove = entity.provider === target.provider &&
+          String(entity.service) === String(target.service) &&
+          String(entity.collection) !== String(target.identifier)
+
+        if (!canMove) {
+          return accumulator
+        }
+
+        accumulator.movableIdentifiers.push(identifier)
+
+        if (!accumulator.sourceCollections.some(
+          collection => String(collection) === String(entity.collection),
+        )) {
+          accumulator.sourceCollections.push(entity.collection)
+        }
+
+        return accumulator
+      },
+      {
+        movableIdentifiers: [] as EntityIdentifier[],
+        sourceCollections: [] as CollectionIdentifier[],
+      },
+    )
+
+    if (movableIdentifiers.length === 0) {
+      return null
+    }
+
+    loading.value = true
+
+    try {
+      const { successes, failures } = await entitiesStore.move(target.identifier, movableIdentifiers)
+
+      // update source collections to reflect moved messages
+      sourceCollections.push(target.identifier)
+      await collectionsStore.fetch(sourceCollections)
+
+      return { successes, failures }
+    } catch (error) {
+      console.error('[Mail][Operations] Failed to move messages:', error)
+      throw error
+    } finally {
+      loading.value = false
+    }
+  }
+
+  async function downloadMessage(entity: EntityObject, index?: number) {
+    const target = entity.identifier
+    let part = null
+
+    if (index !== undefined) {
+      part = entity.properties.attachments?.[Number(index)] ?? null
+    }
+
+    try {
+      await entitiesStore.download(target, part)
+    } catch (error) {
+      console.error(
+        index === undefined
+          ? '[Mail][Operations] Failed to download message:'
+          : '[Mail][Operations] Failed to download attachment:',
+        error,
+      )
+      throw error
+    }
+  }
+
+  async function attachmentBlob(entity: EntityObject, part: MessagePartInterface): Promise<Blob> {
+    const selector: EntityBlobSelector = {
+      blobId: part.blobId ?? undefined,
+      partId: part.partId ?? undefined,
+      cid: part.cid ?? undefined,
+    }
+    const results = await entitiesStore.blobs(entity.identifier, [selector])
+    const blob = results[0]?.blob
+    if (!blob) {
+      throw new Error('Attachment content unavailable')
+    }
+    return blob
+  }
+
+  // ── Exports ───────────────────────────────────────────────────────────────
+
+  return {
+    // Sub-stores (forwarded for template convenience)
+    collectionsStore,
+    entitiesStore,
+    servicesStore,
+    mailSync,
+
+    // State
+    loading,
+    selectedMessage,
+    composerSaving,
+    composerSending,
+    composerLastSaved,
+    composerDraftIdentifier,
+    serviceFolderLoadingState,
+    serviceFolderLoadedState,
+    serviceFolderErrorState,
+
+    // Computed
+    currentMessages,
+
+    // Actions
+    retrieveService,
+    selectFolder,
+    selectMessage,
+    createFolder,
+    saveComposerDraft,
+    sendComposerMessage,
+    resetComposerState,
+    flagMessages,
+    deleteMessages,
+    deleteFolder,
+    moveMessages,
+    downloadMessage,
+    attachmentBlob,
+    moveFolder,
+    renameFolder,
+    isServiceFolderLoading,
+    hasServiceFoldersLoaded,
+    getServiceFolderError,
+    findFoldersByRole,
+    loadFoldersForService,
+    initialize,
+  }
+})

src/stores/mailRecipientsStore.ts

@@ -0,0 +1,85 @@
+/**
+ * Recipients Store
+ */
+
+import { ref } from 'vue'
+import { defineStore } from 'pinia'
+import { recipientService } from '../services/recipientService'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+
+/** Minimum characters before a lookup fires. */
+const MIN_QUERY_LENGTH = 3
+
+/** Debounce window for keystroke-driven searches. */
+const DEBOUNCE_MS = 250
+
+export const useRecipientLookupStore = defineStore('mailRecipientsStore', () => {
+  const suggestions = ref<MessageAddressInterface[]>([])
+  const searching = ref(false)
+
+  let debounceTimer: ReturnType<typeof setTimeout> | null = null
+  // Monotonic token so out-of-order/stale responses are discarded.
+  let requestToken = 0
+
+  function cancelPending() {
+    if (debounceTimer) {
+      clearTimeout(debounceTimer)
+      debounceTimer = null
+    }
+  }
+
+  /**
+   * Clear suggestions and cancel any in-flight lookup.
+   */
+  function clear() {
+    cancelPending()
+    requestToken++
+    suggestions.value = []
+    searching.value = false
+  }
+
+  /**
+   * Debounced contact search. Queries shorter than MIN_QUERY_LENGTH clear the
+   * suggestion list without hitting the backend.
+   */
+  function search(query: string) {
+    const trimmed = (query ?? '').trim()
+    cancelPending()
+
+    if (trimmed.length < MIN_QUERY_LENGTH) {
+      requestToken++
+      suggestions.value = []
+      searching.value = false
+      return
+    }
+
+    searching.value = true
+    const token = ++requestToken
+
+    debounceTimer = setTimeout(async () => {
+      try {
+        const matches = await recipientService.search(trimmed)
+        if (token !== requestToken) {
+          return
+        }
+        suggestions.value = matches
+      } catch (error: any) {
+        if (token === requestToken) {
+          suggestions.value = []
+        }
+        console.error('[Mail][Recipient Lookup] - Search failed:', error)
+      } finally {
+        if (token === requestToken) {
+          searching.value = false
+        }
+      }
+    }, DEBOUNCE_MS)
+  }
+
+  return {
+    suggestions,
+    searching,
+    search,
+    clear,
+  }
+})

src/stores/mailSettingsStore.ts

@@ -0,0 +1,133 @@
+import { computed } from 'vue'
+import { defineStore } from 'pinia'
+import { useUserStore } from '@KTXC'
+
+const MESSAGE_READ_ENABLED_KEY = 'mail.behaviour.messageReadEnabled'
+const MESSAGE_READ_DELAY_KEY = 'mail.behaviour.messageReadDelay'
+const FOLDER_VIEW_MODE_KEY = 'mail.folderViewMode'
+const MESSAGE_LIST_DENSITY_KEY = 'mail.messageListDensity'
+const MESSAGE_LIST_WIDTH_KEY = 'mail.messageListWidth'
+
+const DEFAULT_MESSAGE_READ_ENABLED = false
+const DEFAULT_MESSAGE_READ_DELAY = 5
+const DEFAULT_FOLDER_VIEW_MODE = 'tree'
+const DEFAULT_MESSAGE_LIST_DENSITY = 'cozy'
+const DEFAULT_MESSAGE_LIST_WIDTH = 35
+
+export type FolderViewMode = 'tree' | 'page'
+
+export type MessageListDensity = 'compact' | 'cozy' | 'comfortable'
+
+export const messageListDensityOptions = [
+  { value: 'compact', title: 'Compact' },
+  { value: 'cozy', title: 'Cozy' },
+  { value: 'comfortable', title: 'Comfortable' },
+]
+
+export const messageListDensityConfig: Record<MessageListDensity, {
+  itemHeight: number
+  lines: 'one' | 'two' | 'three'
+  showSubjectLine: boolean
+  showThirdLine: boolean
+}> = {
+  compact: { itemHeight: 56, lines: 'one', showSubjectLine: false, showThirdLine: false },
+  cozy: { itemHeight: 72, lines: 'two', showSubjectLine: true, showThirdLine: false },
+  comfortable: { itemHeight: 96, lines: 'three', showSubjectLine: true, showThirdLine: true },
+}
+
+// Width of the message list panel, as a percentage of the split area. Only applies to
+// the side-by-side (vertical reading pane) view; future layout views own their own sizing.
+export type MessageListWidth = 25 | 35 | 50
+
+export const messageListWidthOptions = [
+  { value: 25, title: 'Narrow' },
+  { value: 35, title: 'Medium' },
+  { value: 50, title: 'Wide' },
+]
+
+export const messageReadDelayOptions = [
+  { value: 2, title: '2 seconds' },
+  { value: 5, title: '5 seconds' },
+  { value: 10, title: '10 seconds' },
+  { value: 30, title: '30 seconds' },
+]
+
+export const folderViewModeOptions = [
+  { value: 'tree', title: 'Tree' },
+  { value: 'page', title: 'Page' },
+]
+
+function normalizeBoolean(value: unknown, fallback: boolean): boolean {
+  if (typeof value === 'boolean') {
+    return value
+  }
+
+  return fallback
+}
+
+function normalizePositiveNumber(value: unknown, fallback: number): number {
+  const normalized = Number(value)
+
+  return Number.isFinite(normalized) && normalized > 0 ? normalized : fallback
+}
+
+function normalizeFolderViewMode(value: unknown, fallback: FolderViewMode): FolderViewMode {
+  return value === 'tree' || value === 'page' ? value : fallback
+}
+
+function normalizeMessageListDensity(value: unknown, fallback: MessageListDensity): MessageListDensity {
+  return value === 'compact' || value === 'cozy' || value === 'comfortable' ? value : fallback
+}
+
+function normalizeMessageListWidth(value: unknown, fallback: MessageListWidth): MessageListWidth {
+  return value === 25 || value === 35 || value === 50 ? value : fallback
+}
+
+export const useMailSettingsStore = defineStore('mailSettingsStore', () => {
+  const userStore = useUserStore()
+
+  const messageReadEnabled = computed({
+    get: () => normalizeBoolean(userStore.getSetting(MESSAGE_READ_ENABLED_KEY), DEFAULT_MESSAGE_READ_ENABLED),
+    set: (value: boolean) => userStore.setSetting(MESSAGE_READ_ENABLED_KEY, value),
+  })
+
+  const messageReadDelay = computed({
+    get: () => normalizePositiveNumber(userStore.getSetting(MESSAGE_READ_DELAY_KEY), DEFAULT_MESSAGE_READ_DELAY),
+    set: (value: number) => userStore.setSetting(
+      MESSAGE_READ_DELAY_KEY,
+      normalizePositiveNumber(value, DEFAULT_MESSAGE_READ_DELAY),
+    ),
+  })
+
+  const folderViewMode = computed({
+    get: () => normalizeFolderViewMode(userStore.getSetting(FOLDER_VIEW_MODE_KEY), DEFAULT_FOLDER_VIEW_MODE),
+    set: (value: FolderViewMode) => userStore.setSetting(
+      FOLDER_VIEW_MODE_KEY,
+      normalizeFolderViewMode(value, DEFAULT_FOLDER_VIEW_MODE),
+    ),
+  })
+
+  const messageListDensity = computed({
+    get: () => normalizeMessageListDensity(userStore.getSetting(MESSAGE_LIST_DENSITY_KEY), DEFAULT_MESSAGE_LIST_DENSITY),
+    set: (value: MessageListDensity) => userStore.setSetting(
+      MESSAGE_LIST_DENSITY_KEY,
+      normalizeMessageListDensity(value, DEFAULT_MESSAGE_LIST_DENSITY),
+    ),
+  })
+
+  const messageListWidth = computed({
+    get: () => normalizeMessageListWidth(userStore.getSetting(MESSAGE_LIST_WIDTH_KEY), DEFAULT_MESSAGE_LIST_WIDTH),
+    set: (value: MessageListWidth) => userStore.setSetting(
+      MESSAGE_LIST_WIDTH_KEY,
+      normalizeMessageListWidth(value, DEFAULT_MESSAGE_LIST_WIDTH),
+    ),
+  })
+
+  return {
+    folderViewMode,
+    messageListDensity,
+    messageListWidth,
+    messageReadEnabled,
+    messageReadDelay,
+  }
+})

src/stores/mailStore.ts

@@ -1,408 +0,0 @@
-import { ref, computed, shallowRef } from 'vue'
-import { defineStore } from 'pinia'
-import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
-import { useEntitiesStore } from '@MailManager/stores/entitiesStore'
-import { useServicesStore } from '@MailManager/stores/servicesStore'
-import { useMailSync } from '@MailManager/composables/useMailSync'
-import { useSnackbar } from '@KTXC'
-import type { CollectionIdentifier, EntityIdentifier } from '@MailManager/types/common'
-import type { ServiceObject, CollectionObject, EntityObject } from '@MailManager/models'
-
-export const useMailStore = defineStore('mailStore', () => {
-  const servicesStore = useServicesStore()
-  const collectionsStore = useCollectionsStore()
-  const entitiesStore = useEntitiesStore()
-  const { showSnackbar } = useSnackbar()
-
-  // Background mail sync
-  const mailSyncController = useMailSync({
-    interval: 30000,
-    autoStart: false,
-    fetchDetails: true,
-  })
-  const mailSync = {
-    isRunning: mailSyncController.isRunning,
-    lastSync: mailSyncController.lastSync,
-    error: mailSyncController.error,
-    sync: mailSyncController.sync,
-    start: mailSyncController.start,
-    stop: mailSyncController.stop,
-    restart: mailSyncController.restart,
-  }
-
-  // ── General State ─────────────────-───────────────────────────────────────
-  const sidebarVisible = ref(true)
-  const settingsDialogVisible = ref(false)
-  const loading = ref(false)
-  const serviceFolderLoadingState = ref<Record<string, boolean>>({})
-  const serviceFolderLoadedState = ref<Record<string, boolean>>({})
-  const serviceFolderErrorState = ref<Record<string, string | null>>({})
-
-  // ── Selection State ───────────────────────────────────────────────────────
-  const selectedFolder = shallowRef<CollectionObject | null>(null)
-  const selectedMessage = shallowRef<EntityObject | null>(null)
-
-  // ── Compose State ─────────────────────────────────────────────────────────
-  const composeMode = ref(false)
-  const composeReplyTo = shallowRef<EntityObject | null>(null)
-
-  // ── Move State ────────────────────────────────────────────────────────────
-  const moveDialogVisible = ref(false)
-  const moveMessageCandidate = shallowRef<EntityObject | null>(null)
-
-  // ── Computed ──────────────────────────────────────────────────────────────
-  const currentMessages = computed(() => {
-    if (!selectedFolder.value) return []
-
-    const folder = selectedFolder.value
-
-    return entitiesStore.entities.filter(e =>
-      e.provider === folder.provider &&
-      String(e.service) === String(folder.service) &&
-      String(e.collection) === String(folder.identifier),
-    )
-  })
-
-  // ── Initialization ────────────────────────────────────────────────────────
-
-  async function initialize() {
-    loading.value = true
-    try {
-      await servicesStore.list()
-
-      const services = [...servicesStore.services]
-      services.forEach(service => {
-        void loadFoldersForService(service,{ selectInbox: true })
-      })
-    } catch (error) {
-      console.error('[Mail] Failed to initialize:', error)
-    } finally {
-      loading.value = false
-    }
-  }
-
-  async function loadFoldersForService(
-    service: ServiceObject,
-    options: { selectInbox?: boolean } = {},
-  ) {
-    
-    if (service.identifier === null) {
-      return
-    }
-    
-    _setServiceFolderLoading(service.provider, service.identifier, true)
-    _setServiceFolderError(service.provider, service.identifier, null)
-
-    try {
-      // retrieve folders for service
-      const collections = await collectionsStore.list({
-        [service.provider]: {
-          [String(service.identifier)]: true,
-        },
-      })
-
-      _setServiceFolderLoaded(service.provider, service.identifier, true)
-
-      if (options.selectInbox && !selectedFolder.value) {
-        const inbox = Object.values(collections).find(
-          folder =>
-            folder.provider === service.provider &&
-            String(folder.service) === String(service.identifier) &&
-            (folder.properties.role === 'inbox' ||
-              String(folder.identifier).toLowerCase() === 'inbox'),
-        )
-
-        if (inbox) {
-          await selectFolder(inbox)
-        }
-      }
-
-      _updateSyncSources()
-      return collections
-    } catch (error) {
-      const message = error instanceof Error ? error.message : 'Failed to load folders'
-      _setServiceFolderError(service.provider, service.identifier, message)
-      console.error(
-        `[Mail] Failed to load folders for ${service.provider}:${String(service.identifier)}:`,
-        error,
-      )
-      _updateSyncSources()
-      return {}
-    } finally {
-      _setServiceFolderLoading(service.provider, service.identifier, false)
-    }
-  }
-
-  // ── Helpers ──────────────────────────────────────────────────────────
-
-  function _serviceKey(provider: string, service: string | number) {
-    return `${provider}:${String(service)}`
-  }
-
-  function _collectionIdentifier(collection: CollectionObject): CollectionIdentifier {
-    return `${collection.provider}:${String(collection.service)}:${String(collection.identifier)}` as CollectionIdentifier
-  }
-
-  function _entityIdentifier(entity: EntityObject): EntityIdentifier {
-    return `${entity.provider}:${String(entity.service)}:${String(entity.collection)}:${String(entity.identifier)}` as EntityIdentifier
-  }
-
-  function _setServiceFolderLoading(provider: string, service: string | number, loadingState: boolean) {
-    serviceFolderLoadingState.value = {
-      ...serviceFolderLoadingState.value,
-      [_serviceKey(provider, service)]: loadingState,
-    }
-  }
-
-  function _setServiceFolderLoaded(provider: string, service: string | number, loaded: boolean) {
-    serviceFolderLoadedState.value = {
-      ...serviceFolderLoadedState.value,
-      [_serviceKey(provider, service)]: loaded,
-    }
-  }
-
-  function _setServiceFolderError(provider: string, service: string | number, error: string | null) {
-    serviceFolderErrorState.value = {
-      ...serviceFolderErrorState.value,
-      [_serviceKey(provider, service)]: error,
-    }
-  }
-
-  function _updateSyncSources() {
-    mailSyncController.clearSources()
-
-    // Track the currently selected folder
-    if (selectedFolder.value) {
-      mailSyncController.addSource({
-        provider: selectedFolder.value.provider,
-        service: selectedFolder.value.service,
-        collections: [selectedFolder.value.identifier],
-      })
-    }
-
-    // Always track inboxes for each account (for new-mail notifications)
-    servicesStore.services.forEach(service => {
-      const inboxes = collectionsStore.collectionsForService(service.provider, service.identifier).filter(
-        c =>
-          String(c.service) === String(service.identifier) &&
-          (c.properties.role === 'inbox' ||
-            String(c.identifier).toLowerCase() === 'inbox'),
-      )
-
-      if (inboxes.length > 0) {
-        mailSyncController.addSource({
-          provider: service.provider,
-          service: service.identifier as string | number,
-          collections: inboxes.map(inbox => inbox.identifier),
-        })
-      }
-    })
-
-    if (mailSyncController.sources.value.length > 0 && !mailSyncController.isRunning.value) {
-      mailSyncController.start()
-    }
-  }
-
-  function isServiceFolderLoading(provider: string, service: string | number) {
-    return serviceFolderLoadingState.value[_serviceKey(provider, service)] === true
-  }
-
-  function hasServiceFoldersLoaded(provider: string, service: string | number) {
-    return serviceFolderLoadedState.value[_serviceKey(provider, service)] === true
-  }
-
-  function getServiceFolderError(provider: string, service: string | number) {
-    return serviceFolderErrorState.value[_serviceKey(provider, service)] ?? null
-  }
-
-  function _isSameMessage(left: EntityObject | null, right: EntityObject): boolean {
-    if (!left) {
-      return false
-    }
-
-    return (
-      left.provider === right.provider &&
-      String(left.service) === String(right.service) &&
-      String(left.collection) === String(right.collection) &&
-      String(left.identifier) === String(right.identifier)
-    )
-  }
-
-  // ── Actions ───────────────────────────────────────────────────────────────
-
-  async function selectFolder(folder: CollectionObject) {
-    selectedFolder.value = folder
-    selectedMessage.value = null
-    composeMode.value = false
-
-    try {
-      await entitiesStore.list({
-        [folder.provider]: {
-          [folder.service]: {
-            [folder.identifier]: true,
-          },
-        },
-      })
-    } catch (error) {
-      console.error('[Mail] Failed to load messages:', error)
-    }
-
-    _updateSyncSources()
-  }
-
-  function selectMessage(message: EntityObject, closeSidebar = false) {
-    selectedMessage.value = message
-    composeMode.value = false
-
-    if (closeSidebar) {
-      sidebarVisible.value = false
-    }
-  }
-
-  function openCompose(replyTo?: EntityObject) {
-    composeMode.value = true
-    composeReplyTo.value = replyTo ?? null
-    selectedMessage.value = null
-  }
-
-  function openMoveDialog(message: EntityObject) {
-    moveMessageCandidate.value = message
-    moveDialogVisible.value = true
-  }
-
-  function closeMoveDialog() {
-    moveDialogVisible.value = false
-    moveMessageCandidate.value = null
-  }
-
-  function closeCompose() {
-    composeMode.value = false
-    composeReplyTo.value = null
-  }
-
-  async function afterSent() {
-    composeMode.value = false
-    composeReplyTo.value = null
-
-    // Reload the current folder so the sent message appears in Sent
-    if (selectedFolder.value) {
-      await selectFolder(selectedFolder.value)
-    }
-  }
-
-  async function moveMessage(targetFolder: CollectionObject) {
-    const message = moveMessageCandidate.value
-
-    if (!message) {
-      return
-    }
-
-    const isSameCollection =
-      targetFolder.provider === message.provider &&
-      String(targetFolder.service) === String(message.service) &&
-      String(targetFolder.identifier) === String(message.collection)
-
-    if (isSameCollection) {
-      closeMoveDialog()
-      return
-    }
-
-    loading.value = true
-
-    try {
-      const sourceIdentifier = _entityIdentifier(message)
-      const response = await entitiesStore.move(_collectionIdentifier(targetFolder), [sourceIdentifier])
-      const result = response[sourceIdentifier]
-
-      if (!result || !result.success) {
-        throw new Error(result && 'error' in result ? result.error : 'Failed to move message')
-      }
-
-      if (_isSameMessage(selectedMessage.value, message)) {
-        selectedMessage.value = null
-      }
-
-      const service = servicesStore.services.find(entry =>
-        entry.provider === message.provider &&
-        String(entry.identifier) === String(message.service),
-      )
-
-      if (service) {
-        void loadFoldersForService(service)
-      }
-
-      notify(`Message moved to "${targetFolder.properties.label || targetFolder.identifier}"`, 'success')
-      closeMoveDialog()
-    } catch (error) {
-      const messageText = error instanceof Error ? error.message : 'Failed to move message'
-      console.error('[Mail] Failed to move message:', error)
-      notify(messageText, 'error')
-      throw error
-    } finally {
-      loading.value = false
-    }
-  }
-
-  async function deleteMessage(message: EntityObject) {
-    // TODO: implement delete via entity / collection store
-    console.log('[Mail] Delete message:', message.identifier)
-  }
-
-  function toggleSidebar() {
-    sidebarVisible.value = !sidebarVisible.value
-  }
-
-  function openSettings() {
-    settingsDialogVisible.value = true
-  }
-
-  function notify(message: string, color: 'success' | 'error' | 'info' | 'warning' = 'success') {
-    showSnackbar({ message, color })
-  }
-
-  // ── Exports ───────────────────────────────────────────────────────────────
-
-  return {
-    // Sub-stores (forwarded for template convenience)
-    collectionsStore,
-    entitiesStore,
-    servicesStore,
-    mailSync,
-
-    // State
-    sidebarVisible,
-    settingsDialogVisible,
-    loading,
-    selectedFolder,
-    selectedMessage,
-    composeMode,
-    composeReplyTo,
-    moveDialogVisible,
-    moveMessageCandidate,
-    serviceFolderLoadingState,
-    serviceFolderLoadedState,
-    serviceFolderErrorState,
-
-    // Computed
-    currentMessages,
-
-    // Actions
-    selectFolder,
-    selectMessage,
-    openCompose,
-    openMoveDialog,
-    closeMoveDialog,
-    closeCompose,
-    afterSent,
-    deleteMessage,
-    moveMessage,
-    toggleSidebar,
-    openSettings,
-    notify,
-    isServiceFolderLoading,
-    hasServiceFoldersLoaded,
-    getServiceFolderError,
-    loadFoldersForService,
-    initialize,
-  }
-})

src/stores/mailUiStore.ts

@@ -0,0 +1,791 @@
+import { computed, ref, shallowRef, watch } from 'vue'
+import { defineStore } from 'pinia'
+import { useCollectionsStore } from '@MailManager/stores/collectionsStore'
+import { useMailOperationsStore } from '@/stores/mailOperationsStore'
+import { useMailSettingsStore } from '@/stores/mailSettingsStore'
+import { ComposerMode } from '@/types/composer'
+import type { ServiceIdentifier, EntityIdentifier } from '@MailManager/types/common'
+import { EntityObject, type ServiceObject } from '@MailManager/models'
+import type { CollectionObject } from '@MailManager/models/collection'
+import type { MessageInterface } from '@MailManager/types/message'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+import { useSnackbar } from '@KTXC'
+
+export const useMailUiStore = defineStore('mailUiStore', () => {
+  const collectionsStore = useCollectionsStore()
+  const mailOperationsStore = useMailOperationsStore()
+  const mailSettingsStore = useMailSettingsStore()
+  const { showSnackbar } = useSnackbar()
+
+  const sidebarVisible = ref(true)
+  const settingsDialogVisible = ref(false)
+  const selectedFolder = shallowRef<CollectionObject | null>(null)
+  const selectedMessage = shallowRef<EntityObject | null>(null)
+  const composerMode = ref<ComposerMode>(ComposerMode.Fresh)
+  const composerSource = shallowRef<EntityObject | MessageAddressInterface | null>(null)
+  const composerVisible = ref(false)
+  const selectionMode = ref(false)
+  const selectionList = ref<EntityIdentifier[]>([])
+  const moveMessagesDialogVisible = ref(false)
+  const moveMessagesDialogService = shallowRef<ServiceObject | null>(null)
+  const moveMessagesDialogCandidates = ref<EntityIdentifier[] | null>(null)
+  const createFolderDialogVisible = ref(false)
+  const createFolderDialogService = shallowRef<ServiceObject | null>(null)
+  const createFolderDialogParent = shallowRef<CollectionObject | null>(null)
+  const createFolderDialogLoading = ref(false)
+  const createFolderDialogError = ref('')
+  const renameFolderDialogVisible = ref(false)
+  const renameFolderDialogService = shallowRef<ServiceObject | null>(null)
+  const renameFolderDialogFolder = shallowRef<CollectionObject | null>(null)
+  const renameFolderDialogLoading = ref(false)
+  const renameFolderDialogError = ref('')
+  const moveFolderDialogVisible = ref(false)
+  const moveFolderDialogService = shallowRef<ServiceObject | null>(null)
+  const moveFolderDialogSource = shallowRef<CollectionObject | null>(null)
+  const deleteFolderDialogVisible = ref(false)
+  const deleteFolderDialogService = shallowRef<ServiceObject | null>(null)
+  const deleteFolderDialogFolder = shallowRef<CollectionObject | null>(null)
+  const deleteFolderDialogLoading = ref(false)
+  const deleteFolderDialogError = ref('')
+  const messageReadIdentifier = ref<EntityIdentifier | null>(null)
+  const messageReadTimer = ref<ReturnType<typeof setTimeout> | null>(null)
+
+  const createFolderDialogParentLabel = computed(() => {
+    return createFolderDialogParent.value?.properties.label || 'Root'
+  })
+
+  const renameFolderDialogParentLabel = computed(() => {
+    const folder = renameFolderDialogFolder.value
+
+    if (!folder || folder.collection === null || folder.collection === undefined) {
+      return 'Root'
+    }
+
+    const parent = collectionsStore.collectionsInCollection(folder.provider, folder.service, null)
+      .flatMap(rootFolder => [rootFolder, ...collectionsStore.collectionsForService(folder.provider, folder.service)])
+      .find(candidate => String(candidate.identifier) === String(folder.collection))
+
+    return parent?.properties.label || 'Root'
+  })
+
+  const moveFolderDialogInvalidFolderKeys = computed(() => {
+    const sourceFolder = moveFolderDialogSource.value
+
+    if (!sourceFolder) {
+      return []
+    }
+
+    const invalidKeys = new Set<string>()
+    const queue = [sourceFolder]
+
+    while (queue.length > 0) {
+      const currentFolder = queue.shift()
+
+      if (!currentFolder) {
+        continue
+      }
+
+      invalidKeys.add(String(currentFolder.identifier))
+
+      collectionsStore
+        .collectionsInCollection(currentFolder.provider, currentFolder.service, currentFolder.identifier)
+        .forEach(childFolder => {
+          queue.push(childFolder)
+        })
+    }
+
+    return Array.from(invalidKeys)
+  })
+
+  watch(
+    () => mailOperationsStore.selectedMessage,
+    message => {
+      if (message) {
+        closeComposer()
+      }
+
+      selectMessage(message)
+    },
+  )
+
+  watch(
+    () => mailOperationsStore.currentMessages,
+    () => {
+      messageSelectionReconcile()
+    },
+  )
+
+  async function initialize() {
+    await mailOperationsStore.initialize()
+
+    if (!selectedFolder.value) {
+      const inbox = mailOperationsStore.findFoldersByRole('inbox')[0] ?? null
+
+      if (inbox) {
+        await selectFolder(inbox)
+      }
+    }
+  }
+
+  function sidebarToggle() {
+    sidebarVisible.value = !sidebarVisible.value
+  }
+
+  function sidebarHide() {
+    sidebarVisible.value = false
+  }
+
+  function settingsOpen() {
+    settingsDialogVisible.value = true
+  }
+
+  function settingsClose() {
+    settingsDialogVisible.value = false
+  }
+
+  function notify(message: string, color: 'success' | 'error' | 'info' | 'warning' = 'success') {
+    showSnackbar({ message, color })
+  }
+
+  function notifyDeleteMessagesResult(successes: number, failures: number) {
+    if (failures === 0) {
+      notify(successes === 1 ? 'Message deleted' : `${successes} messages deleted`, 'success')
+      return
+    }
+
+    notify(
+      successes === 0
+        ? `Delete failed for ${failures === 1 ? '1 message' : `${failures} messages`}`
+        : `Deleted ${successes} ${successes === 1 ? 'message' : 'messages'}. ${failures} failed.`,
+      successes === 0 ? 'error' : 'warning',
+    )
+  }
+
+  function notifyFlagMessagesResult(successes: number, failures: number) {
+    if (failures === 0) {
+      notify(successes === 1 ? 'Message updated' : `${successes} messages updated`, 'success')
+      return
+    }
+
+    notify(
+      successes === 0
+        ? `Update failed for ${failures === 1 ? '1 message' : `${failures} messages`}`
+        : `Updated ${successes} ${successes === 1 ? 'message' : 'messages'}. ${failures} failed.`,
+      successes === 0 ? 'error' : 'warning',
+    )
+  }
+
+  function notifyMoveMessagesResult(successes: number, failures: number) {
+    if (failures === 0) {
+      notify(successes === 1 ? 'Message moved' : `${successes} messages moved`, 'success')
+      return
+    }
+
+    notify(
+      successes === 0
+        ? `Move failed for ${failures === 1 ? '1 message' : `${failures} messages`}`
+        : `Moved ${successes} ${successes === 1 ? 'message' : 'messages'}. ${failures} failed.`,
+      successes === 0 ? 'error' : 'warning',
+    )
+  }
+
+  function _sameCollection(left: CollectionObject | null | undefined, right: CollectionObject | null | undefined): boolean {
+    if (!left || !right) {
+      return false
+    }
+
+    return left.provider === right.provider &&
+      String(left.service) === String(right.service) &&
+      String(left.identifier) === String(right.identifier)
+  }
+
+  async function selectFolder(folder: CollectionObject | null) {
+    closeComposer()
+    messageSelectionModeDeactivate()
+    clearMessageReadTimer()
+    selectedMessage.value = null
+    selectedFolder.value = folder
+    await mailOperationsStore.selectFolder(folder)
+  }
+
+  async function selectMessage(message: EntityObject | null) {
+    messageSelectionModeDeactivate()
+    createMessageReadTimer(message)
+    selectedMessage.value = message
+  }
+
+  function createMessageReadTimer(entity: EntityObject | null) {
+    clearMessageReadTimer()
+
+    if (!entity) {
+      return
+    }
+
+    if (entity.properties.isRead || !mailSettingsStore.messageReadEnabled) {
+      return
+    }
+
+    const delayMilliseconds = mailSettingsStore.messageReadDelay * 1000
+
+    if (delayMilliseconds <= 0) {
+      return
+    }
+
+    messageReadIdentifier.value = entity.identifier
+    messageReadTimer.value = setTimeout(() => {
+      void completeMessageRead(entity.identifier)
+    }, delayMilliseconds)
+  }
+
+  function clearMessageReadTimer() {
+    if (messageReadTimer.value !== null) {
+      clearTimeout(messageReadTimer.value)
+    }
+
+    messageReadTimer.value = null
+    messageReadIdentifier.value = null
+  }
+
+  async function completeMessageRead(identifier: EntityIdentifier) {
+    try {
+      if (selectedMessage.value && selectedMessage.value.identifier === identifier && selectedMessage.value.properties.isRead === false) {
+        await flagMessages([selectedMessage.value.identifier], { seen: true }, { notify: false })
+      }
+    } catch (error) {
+      console.error('[Mail][UI] Failed to auto-mark message as read:', error)
+    } finally {
+      clearMessageReadTimer()
+    }
+  }
+  
+  function openCreateFolderDialog(service: ServiceObject, parentFolder: CollectionObject | null = null) {
+    createFolderDialogService.value = service
+    createFolderDialogParent.value = parentFolder
+    createFolderDialogError.value = ''
+    createFolderDialogLoading.value = false
+    createFolderDialogVisible.value = true
+  }
+
+  function closeCreateFolderDialog() {
+    createFolderDialogVisible.value = false
+    createFolderDialogService.value = null
+    createFolderDialogParent.value = null
+    createFolderDialogError.value = ''
+    createFolderDialogLoading.value = false
+  }
+
+  async function confirmCreateFolder(label: string) {
+    const service = createFolderDialogService.value
+
+    if (!service) {
+      return null
+    }
+
+    createFolderDialogLoading.value = true
+    createFolderDialogError.value = ''
+
+    try {
+      const folder = await mailOperationsStore.createFolder(service, label, createFolderDialogParent.value)
+      notify(`Folder "${folder.properties.label || label.trim()}" created`, 'success')
+      closeCreateFolderDialog()
+      return folder
+    } catch (error) {
+      createFolderDialogError.value = error instanceof Error ? error.message : 'Failed to create folder. Please try again.'
+      throw error
+    } finally {
+      createFolderDialogLoading.value = false
+    }
+  }
+
+  async function openRenameFolderDialog(target: CollectionObject) {
+    const service = await mailOperationsStore.retrieveService(target.service)
+    renameFolderDialogService.value = service
+    renameFolderDialogFolder.value = target
+    renameFolderDialogError.value = ''
+    renameFolderDialogLoading.value = false
+    renameFolderDialogVisible.value = true
+  }
+
+  function closeRenameFolderDialog() {
+    renameFolderDialogVisible.value = false
+    renameFolderDialogService.value = null
+    renameFolderDialogFolder.value = null
+    renameFolderDialogError.value = ''
+    renameFolderDialogLoading.value = false
+  }
+
+  async function confirmRenameFolder(label: string) {
+    const folder = renameFolderDialogFolder.value
+
+    if (!folder) {
+      return null
+    }
+
+    renameFolderDialogLoading.value = true
+    renameFolderDialogError.value = ''
+
+    try {
+      const updatedFolder = await mailOperationsStore.renameFolder(folder, label)
+
+      if (_sameCollection(selectedFolder.value, folder)) {
+        selectedFolder.value = updatedFolder
+      }
+
+      notify(
+        `Folder "${folder.properties.label || String(folder.identifier)}" renamed to "${updatedFolder.properties.label || label.trim()}"`,
+        'success',
+      )
+
+      closeRenameFolderDialog()
+      return updatedFolder
+    } catch (error) {
+      renameFolderDialogError.value = error instanceof Error ? error.message : 'Failed to rename folder. Please try again.'
+      throw error
+    } finally {
+      renameFolderDialogLoading.value = false
+    }
+  }
+
+  async function openMoveFolderDialog(source: CollectionObject) {
+    const service = await mailOperationsStore.retrieveService(source.service)
+    moveFolderDialogService.value = service
+    moveFolderDialogSource.value = source
+    moveFolderDialogVisible.value = true
+  }
+
+  function closeMoveFolderDialog() {
+    moveFolderDialogVisible.value = false
+    moveFolderDialogService.value = null
+    moveFolderDialogSource.value = null
+  }
+
+  async function confirmMoveFolder(target: CollectionObject) {
+    const source = moveFolderDialogSource.value
+
+    if (!source) {
+      return null
+    }
+
+    const movedFolder = await mailOperationsStore.moveFolder(source, target)
+
+    if (_sameCollection(selectedFolder.value, source)) {
+      selectedFolder.value = movedFolder
+    }
+
+    notify(
+      `Folder "${source.properties.label || String(source.identifier)}" moved to "${target.properties.label || String(target.identifier)}"`,
+      'success',
+    )
+
+    closeMoveFolderDialog()
+    return movedFolder
+  }
+
+  async function openDeleteFolderDialog(target: CollectionObject) {
+    const service = await mailOperationsStore.retrieveService(target.service)
+    deleteFolderDialogService.value = service
+    deleteFolderDialogFolder.value = target
+    deleteFolderDialogError.value = ''
+    deleteFolderDialogLoading.value = false
+    deleteFolderDialogVisible.value = true
+  }
+
+  function closeDeleteFolderDialog() {
+    deleteFolderDialogVisible.value = false
+    deleteFolderDialogService.value = null
+    deleteFolderDialogFolder.value = null
+    deleteFolderDialogError.value = ''
+    deleteFolderDialogLoading.value = false
+  }
+
+  async function confirmDeleteFolder() {
+    const folder = deleteFolderDialogFolder.value
+
+    if (!folder) {
+      return null
+    }
+
+    deleteFolderDialogLoading.value = true
+    deleteFolderDialogError.value = ''
+
+    try {
+      const deleted = await mailOperationsStore.deleteFolder(folder)
+
+      if (_sameCollection(selectedFolder.value, folder)) {
+        selectFolder(null)
+      }
+
+      notify(`Folder "${folder.properties.label || String(folder.identifier)}" deleted`, 'success')
+
+      closeDeleteFolderDialog()
+      return deleted
+    } catch (error) {
+      deleteFolderDialogError.value = error instanceof Error ? error.message : 'Failed to delete folder. Please try again.'
+      throw error
+    } finally {
+      deleteFolderDialogLoading.value = false
+    }
+  }
+
+  function validateFolderNameBase(service: ServiceObject, name: string): string[] {
+    const errors: string[] = []
+
+    if (!name || name.trim().length === 0) {
+      errors.push('Folder name is required')
+      return errors
+    }
+
+    if (name.length > 255) {
+      errors.push('Folder name too long (max 255 characters)')
+    }
+
+    if (/[<>:"|?*\x00-\x1F]/.test(name)) {
+      errors.push('Folder name contains invalid characters')
+    }
+
+    if (service.provider === 'imap' && /[\/\\]/.test(name)) {
+      errors.push('IMAP folder names cannot contain / or \\')
+    }
+
+    if (name !== name.trim()) {
+      errors.push('Folder name cannot have leading or trailing spaces')
+    }
+
+    return errors
+  }
+
+  function validateCreateFolderName(name: string): string[] {
+    const service = createFolderDialogService.value
+
+    if (!service || service.identifier === null) {
+      return ['Folder service is unavailable']
+    }
+
+    const errors = validateFolderNameBase(service, name)
+
+    if (errors.length > 0) {
+      return errors
+    }
+
+    const parentIdentifier = createFolderDialogParent.value?.identifier ?? null
+    const duplicate = collectionsStore
+      .collectionsInCollection(service.provider, service.identifier, parentIdentifier)
+      .some(folder => folder.properties.label === name)
+
+    if (duplicate) {
+      errors.push('A folder with this name already exists in this location')
+    }
+
+    return errors
+  }
+
+  function validateRenameFolderName(name: string): string[] {
+    const service = renameFolderDialogService.value
+    const folder = renameFolderDialogFolder.value
+
+    if (!service || !folder || service.identifier === null) {
+      return ['Folder service is unavailable']
+    }
+
+    const errors = validateFolderNameBase(service, name)
+
+    if (errors.length > 0) {
+      return errors
+    }
+
+    const parentIdentifier = folder.collection ?? null
+    const duplicate = collectionsStore
+      .collectionsInCollection(service.provider, service.identifier, parentIdentifier)
+      .some(candidate =>
+        String(candidate.identifier) !== String(folder.identifier) &&
+        candidate.properties.label === name,
+      )
+
+    if (duplicate) {
+      errors.push('A folder with this name already exists in this location')
+    }
+
+    return errors
+  }
+
+  function setSelectionList(nextIds: EntityIdentifier[]) {
+    selectionList.value = Array.from(new Set(nextIds))
+  }
+
+  function openComposer(source?: EntityObject | MessageAddressInterface, mode: ComposerMode = ComposerMode.Fresh) {
+    mailOperationsStore.selectMessage(null)
+    composerSource.value = source ?? null
+    composerMode.value = mode
+    composerVisible.value = true
+  }
+
+  function closeComposer() {
+    composerMode.value = ComposerMode.Fresh
+    composerSource.value = null
+    composerVisible.value = false
+  }
+
+  function messageSelectionClear() {
+    setSelectionList([])
+  }
+
+  function messageSelectionModeActivate(message?: EntityObject) {
+    selectionMode.value = true
+
+    if (!message) {
+      return
+    }
+
+    const identifier = message.identifier
+
+    if (!selectionList.value.includes(identifier)) {
+      setSelectionList([...selectionList.value, identifier])
+    }
+  }
+
+  function messageSelectionModeDeactivate() {
+    selectionMode.value = false
+    messageSelectionClear()
+  }
+
+  function messageSelectionToggleOne(message: EntityObject) {
+    const identifier = message.identifier
+
+    selectionMode.value = true
+
+    if (selectionList.value.includes(identifier)) {
+      setSelectionList(selectionList.value.filter(selectedId => selectedId !== identifier))
+      return
+    }
+
+    setSelectionList([...selectionList.value, identifier])
+  }
+
+  function messageSelectionToggleAll(value: boolean) {
+    selectionMode.value = true
+    if (value) {
+      setSelectionList(mailOperationsStore.currentMessages.map(message => message.identifier))
+    } else {
+      setSelectionList([])
+    }
+  }
+
+  function messageSelectionReconcile() {
+    if (!selectedFolder.value) {
+      messageSelectionClear()
+      return
+    }
+
+    const currentMessageIdentifiers = new Set(mailOperationsStore.currentMessages.map(message => message.identifier))
+    const nextSelectedIds = selectionList.value.filter(identifier => currentMessageIdentifiers.has(identifier))
+
+    if (nextSelectedIds.length !== selectionList.value.length) {
+      setSelectionList(nextSelectedIds)
+    }
+
+    if (nextSelectedIds.length === 0) {
+      selectionMode.value = false
+    }
+  }
+
+  async function openMoveMessagesDialog(entities?: EntityObject | EntityObject[]) {
+    
+    let moveMessagesServiceIdentifier = null as ServiceIdentifier | null
+    moveMessagesDialogCandidates.value = []
+
+    if (entities) {
+      if (Array.isArray(entities)) {
+        moveMessagesDialogCandidates.value = entities.map(entity => entity.identifier)
+        moveMessagesServiceIdentifier = entities[0]?.service as ServiceIdentifier || null
+      } else {
+        moveMessagesDialogCandidates.value = [entities.identifier]
+        moveMessagesServiceIdentifier = entities.service as ServiceIdentifier || null
+      }
+    } else {
+      moveMessagesDialogCandidates.value = [...selectionList.value]
+      moveMessagesServiceIdentifier = selectedFolder.value?.service as ServiceIdentifier || null
+    }
+
+    moveMessagesDialogService.value = await mailOperationsStore.retrieveService(moveMessagesServiceIdentifier)
+    moveMessagesDialogVisible.value = true
+  }
+
+  function closeMoveMessagesDialog() {
+    moveMessagesDialogVisible.value = false
+    moveMessagesDialogService.value = null
+    moveMessagesDialogCandidates.value = null
+  }
+
+  async function confirmMoveMessages(targetIdentifier: Parameters<typeof mailOperationsStore.moveMessages>[0]) {
+    await moveMessages(targetIdentifier, moveMessagesDialogCandidates.value ?? [])
+    messageSelectionModeDeactivate()
+    closeMoveMessagesDialog()
+  }
+
+  async function deleteSelectedMessages() {
+    await deleteMessages([...selectionList.value])
+    messageSelectionModeDeactivate()
+  }
+
+  async function flagSelectedMessages(flag: string, value: boolean) {
+    await flagMessages([...selectionList.value], { [flag]: value })
+    messageSelectionModeDeactivate()
+  }
+
+  async function deleteMessages(entityIdentifiers: EntityIdentifier[]) {
+    try {
+      const result = await mailOperationsStore.deleteMessages(entityIdentifiers)
+
+      if (!result) {
+        return null
+      }
+
+      notifyDeleteMessagesResult(result.successes.length, result.failures.length)
+      return result
+    } catch (error) {
+      const messageText = error instanceof Error ? error.message : 'Failed to delete messages'
+      notify(messageText, 'error')
+      throw error
+    }
+  }
+
+  async function flagMessages(
+    entityIdentifiers: EntityIdentifier[],
+    flags: Partial<NonNullable<MessageInterface['flags']>>,
+    options: { notify?: boolean } = {},
+  ) {
+    try {
+      const result = await mailOperationsStore.flagMessages(entityIdentifiers, flags)
+
+      if (!result) {
+        return null
+      }
+
+      if (options.notify ?? true) {
+        notifyFlagMessagesResult(result.successes.length, result.failures.length)
+      }
+
+      return result
+    } catch (error) {
+      const messageText = error instanceof Error ? error.message : 'Failed to update messages'
+      if (options.notify ?? true) {
+        notify(messageText, 'error')
+      }
+      throw error
+    }
+  }
+
+  async function flagMessage(entity: EntityObject, flag: string, value: boolean) {
+    return await flagMessages([entity.identifier], { [flag]: value })
+  }
+
+  async function moveMessages(target: CollectionObject, entityIdentifiers: EntityIdentifier[]) {
+    try {
+      const result = await mailOperationsStore.moveMessages(target, entityIdentifiers)
+
+      if (!result) {
+        return null
+      }
+
+      notifyMoveMessagesResult(result.successes.length, result.failures.length)
+      return result
+    } catch (error) {
+      const messageText = error instanceof Error ? error.message : 'Failed to move messages'
+      notify(messageText, 'error')
+      throw error
+    }
+  }
+
+  async function downloadMessage(entity: EntityObject, index?: number) {
+    try {
+      await mailOperationsStore.downloadMessage(entity, index)
+    } catch (error) {
+      const messageText = error instanceof Error
+        ? error.message
+        : index === undefined
+          ? 'Failed to download message'
+          : 'Failed to download attachment'
+      notify(messageText, 'error')
+      throw error
+    }
+  }
+
+  function attachmentBlob(entity: EntityObject, part: Parameters<typeof mailOperationsStore.attachmentBlob>[1]) {
+    return mailOperationsStore.attachmentBlob(entity, part)
+  }
+
+  return {
+    sidebarVisible,
+    settingsDialogVisible,
+    selectedFolder,
+    selectedMessage,
+    composerMode,
+    composerSource,
+    composerVisible,
+    selectionMode,
+    selectionList,
+    moveMessagesDialogVisible,
+    moveMessagesDialogService,
+    moveMessagesDialogCandidates,
+    createFolderDialogParentLabel,
+    createFolderDialogVisible,
+    createFolderDialogService,
+    createFolderDialogParent,
+    createFolderDialogLoading,
+    createFolderDialogError,
+    renameFolderDialogVisible,
+    renameFolderDialogService,
+    renameFolderDialogFolder,
+    renameFolderDialogParentLabel,
+    renameFolderDialogLoading,
+    renameFolderDialogError,
+    moveFolderDialogVisible,
+    moveFolderDialogService,
+    moveFolderDialogSource,
+    moveFolderDialogInvalidFolderKeys,
+    deleteFolderDialogVisible,
+    deleteFolderDialogService,
+    deleteFolderDialogFolder,
+    deleteFolderDialogLoading,
+    deleteFolderDialogError,
+    initialize,
+    sidebarToggle,
+    sidebarHide,
+    settingsOpen,
+    settingsClose,
+    notify,
+    selectFolder,
+    openComposer,
+    closeComposer,
+    deleteMessages,
+    flagMessages,
+    flagMessage,
+    moveMessages,
+    downloadMessage,
+    attachmentBlob,
+    messageSelectionModeActivate,
+    messageSelectionModeDeactivate,
+    messageSelectionToggleOne,
+    messageSelectionToggleAll,
+    messageSelectionClear,
+    validateCreateFolderName,
+    validateRenameFolderName,
+    openMoveMessagesDialog,
+    closeMoveMessagesDialog,
+    confirmMoveMessages,
+    deleteSelectedMessages,
+    openCreateFolderDialog,
+    closeCreateFolderDialog,
+    confirmCreateFolder,
+    openRenameFolderDialog,
+    closeRenameFolderDialog,
+    confirmRenameFolder,
+    openMoveFolderDialog,
+    closeMoveFolderDialog,
+    confirmMoveFolder,
+    openDeleteFolderDialog,
+    closeDeleteFolderDialog,
+    confirmDeleteFolder,
+    flagSelectedMessages,
+  }
+})

src/style.css

@@ -3,7 +3,8 @@
 .mail-container {
   display: flex;
   flex-direction: column;
-  height: 100vh;
+  height: 100%;
+  min-height: 0;
   isolation: isolate;
 }
 
@@ -14,6 +15,7 @@
 .mail-content {
   display: flex;
   flex: 1;
+  min-height: 0;
   overflow: hidden;
   position: relative;
 }
@@ -25,6 +27,7 @@
 
 .mail-main {
   flex: 1;
+  min-height: 0;
   display: flex;
   overflow: hidden;
   min-width: 0;
@@ -32,6 +35,8 @@
 
 .mail-wrapper {
   flex: 1;
+  min-height: 0;
+  min-width: 0;
   display: flex;
   overflow: hidden;
 }

src/types/composer.ts

@@ -0,0 +1,48 @@
+import type { ServiceObject } from "@MailManager/models/service"
+import type { EntityIdentifier } from "@MailManager/types/common"
+import type { MessageAddressInterface } from "@MailManager/types/message"
+
+export enum ComposerMode {
+  Fresh = 'fresh',
+  Reply = 'reply',
+  Forward = 'forward',
+}
+
+export interface ComposerDraftAttachment {
+  identifier: string
+  composition: string
+  origin: 'source' | 'upload'
+  name: string
+  type: string
+  size: number
+  source: EntityIdentifier | null
+}
+
+export interface ComposerDraftMessage {
+  to: MessageAddressInterface[]
+  cc: MessageAddressInterface[]
+  bcc: MessageAddressInterface[]
+  subject: string
+  body: {
+	html: string
+	text: string
+  }
+}
+
+export interface ComposerDraft {
+  action: ComposerMode
+  identifier: string
+  revision: number
+  sender: ComposerSenderIdentity
+  source: EntityIdentifier | null
+  stageStatus: 'local' | 'staged'
+  stagedAt: Date | null
+  message: ComposerDraftMessage
+  attachments: Record<string, ComposerDraftAttachment>
+}
+
+export interface ComposerSenderIdentity { 
+  service: ServiceObject
+  address: string
+  label: string | null
+}

src/types/composition.ts

@@ -0,0 +1,119 @@
+import type { EntityIdentifier } from '@MailManager/types/common'
+import type { MessageAddressInterface } from '@MailManager/types/message'
+
+export interface CompositionSenderInterface {
+  provider: string
+  service: string | number | null
+  address: string
+  name: string | null
+}
+
+export interface CompositionMessageInterface {
+  to: MessageAddressInterface[]
+  cc: MessageAddressInterface[]
+  bcc: MessageAddressInterface[]
+  subject: string
+  body: {
+    text: string
+    html: string
+  }
+}
+
+export interface CompositionAttachmentInterface {
+  identifier: string
+  composition: string
+  origin: 'source' | 'upload'
+  name: string
+  type: string
+  size: number
+  source: EntityIdentifier | null
+  data?: string
+}
+
+export interface CompositionStageRequest {
+  identifier: string
+  action: 'fresh' | 'reply' | 'forward'
+  sender: CompositionSenderInterface
+  source?: EntityIdentifier | null
+  message: CompositionMessageInterface
+}
+
+export interface CompositionStageResponse {
+  identifier: string
+  revision: number
+  disposition: 'staged'
+  attachments: Record<string, CompositionAttachmentInterface>
+}
+
+export interface CompositionPatchRequest {
+  identifier: string
+  revision: number
+  sender: CompositionSenderInterface
+  message: CompositionMessageInterface
+}
+
+export interface CompositionPatchResponse {
+  identifier: string
+  revision: number
+  message: CompositionMessageInterface
+}
+
+export interface CompositionDiscardRequest {
+  identifier: string
+}
+
+export interface CompositionDiscardResponse {
+  identifier: string
+  disposition: 'discarded' | 'error'
+  error?: {
+    type: string
+    message: string
+  }
+}
+
+export interface CompositionSendRequest {
+  identifier: string
+  revision: number
+  sender: CompositionSenderInterface
+  message: CompositionMessageInterface
+  attachments: Record<string, CompositionAttachmentInterface>
+}
+
+export interface CompositionSendResponse {
+  identifier: string
+  disposition: 'sent' | 'error'
+  error?: {
+    type: string
+    message: string
+  }
+}
+
+export interface CompositionAttachmentAddRequest {
+  composition: string
+  attachments: Record<string, CompositionAttachmentInterface>
+}
+
+export interface CompositionAttachmentAddResponse {
+  disposition: 'added' | 'error'
+  error?: {
+    type: string
+    message: string
+  }
+  composition: string
+  attachments: Record<string, CompositionAttachmentInterface>
+}
+
+export interface CompositionAttachmentRemoveRequest {
+  composition: string
+  identifier: string
+}
+
+export interface CompositionAttachmentRemoveResponse {
+  disposition: 'removed' | 'error'
+  error?: {
+    type: string
+    message: string
+  }
+  composition: string
+  identifier: string
+}

src/types/mediaViewer.ts

@@ -0,0 +1,9 @@
+import type { MessagePartInterface } from "@MailManager/types/message"
+
+export interface MediaViewerItem {
+  id: string
+  title: string
+  mime: string
+  size?: number | null
+  meta: { index: number; attachment: MessagePartInterface }
+}

src/utile/format.ts

@@ -0,0 +1,21 @@
+export function formatFileSize(bytes: number | null | undefined): string {
+  if (bytes == null || !Number.isFinite(bytes)) {
+    return ''
+  }
+
+  if (bytes < 1024) {
+    return `${Math.max(0, Math.round(bytes))} B`
+  }
+
+  const units = ['KB', 'MB', 'GB', 'TB']
+  let value = bytes / 1024
+  let unitIndex = 0
+
+  while (value >= 1024 && unitIndex < units.length - 1) {
+    value /= 1024
+    unitIndex += 1
+  }
+
+  const precision = value >= 10 || unitIndex === 0 ? 1 : 2
+  return `${value.toFixed(precision)} ${units[unitIndex]}`
+}

tests/js/unit/base.test.ts

@@ -0,0 +1,30 @@
+import { describe, it, expect } from 'vitest'
+
+describe('Basic Tests', () => {
+  it('should perform basic assertion', () => {
+    expect(true).toBe(true)
+  })
+
+  it('should test array operations', () => {
+    const array = ['foo', 'bar', 'baz']
+
+    expect(array).toHaveLength(3)
+    expect(array).toContain('bar')
+    expect(array[0]).toBe('foo')
+  })
+
+  it('should test string operations', () => {
+    const string = 'Hello, World!'
+
+    expect(string).toContain('World')
+    expect(string.length).toBe(13)
+  })
+
+  it('should test object operations', () => {
+    const obj = { foo: 'bar', count: 42 }
+
+    expect(obj).toHaveProperty('foo')
+    expect(obj.foo).toBe('bar')
+    expect(obj.count).toBeGreaterThan(40)
+  })
+})

tests/js/vitest.config.ts

@@ -0,0 +1,33 @@
+import { fileURLToPath } from 'node:url'
+import { defineConfig, configDefaults } from 'vitest/config'
+import vue from '@vitejs/plugin-vue'
+import path from 'path'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+export default defineConfig({
+  plugins: [vue()],
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, '../../src'),
+      '@KTXC': path.resolve(__dirname, '../../../../core/src'),
+    },
+  },
+  test: {
+    environment: 'jsdom',
+    exclude: [...configDefaults.exclude, 'e2e/**'],
+    root: fileURLToPath(new URL('../../', import.meta.url)),
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'json', 'html'],
+      exclude: [
+        'node_modules/',
+        'tests/',
+        '**/*.d.ts',
+        '**/*.config.*',
+        '**/dist/**',
+      ],
+    },
+  },
+})

tests/php/Integration/BaseTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace KTXT\Mail\Tests\Integration;
+
+use PHPUnit\Framework\TestCase;
+
+class BaseTest extends TestCase
+{
+    public function testBasicAssertion(): void
+    {
+        $this->assertTrue(true);
+    }
+
+    public function testArrayOperations(): void
+    {
+        $array = ['foo' => 'bar'];
+
+        $this->assertArrayHasKey('foo', $array);
+        $this->assertEquals('bar', $array['foo']);
+    }
+
+    public function testStringOperations(): void
+    {
+        $string = 'Hello, World!';
+
+        $this->assertStringContainsString('World', $string);
+        $this->assertEquals(13, strlen($string));
+    }
+}

tests/php/Unit/BaseTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace KTXT\Mail\Tests\Unit;
+
+use PHPUnit\Framework\TestCase;
+
+class BaseTest extends TestCase
+{
+    public function testBasicAssertion(): void
+    {
+        $this->assertTrue(true);
+    }
+
+    public function testArrayOperations(): void
+    {
+        $array = ['foo' => 'bar'];
+
+        $this->assertArrayHasKey('foo', $array);
+        $this->assertEquals('bar', $array['foo']);
+    }
+
+    public function testStringOperations(): void
+    {
+        $string = 'Hello, World!';
+
+        $this->assertStringContainsString('World', $string);
+        $this->assertEquals(13, strlen($string));
+    }
+}

tests/php/bootstrap.php

@@ -0,0 +1,17 @@
+<?php
+
+require dirname(__DIR__, 2).'/vendor/autoload.php';
+
+// When this module is checked out inside a full server (server/modules/<handle>,
+// as it is in CI and in this monorepo checkout), also load the server's own
+// core/shared autoloader so tests can reference framework (KTXC/KTXF) types.
+// Standalone module checkouts without a server alongside them skip this.
+define('SERVER_ROOT', dirname(__DIR__, 4));
+$serverAutoload = SERVER_ROOT . '/vendor/autoload.php';
+if (is_file($serverAutoload)) {
+    require $serverAutoload;
+}
+
+if (isset($_SERVER['APP_DEBUG']) && $_SERVER['APP_DEBUG']) {
+    umask(0000);
+}

tests/php/phpunit.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://phpunit.readthedocs.io/en/latest/configuration.html -->
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../vendor/phpunit/phpunit/phpunit.xsd"
+         colors="true"
+         failOnDeprecation="true"
+         failOnNotice="true"
+         failOnWarning="true"
+         bootstrap="bootstrap.php"
+         cacheDirectory="../../.phpunit.cache"
+>
+    <php>
+        <ini name="display_errors" value="1" />
+        <ini name="error_reporting" value="-1" />
+        <server name="APP_ENV" value="test" force="true" />
+        <server name="SHELL_VERBOSITY" value="-1" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Unit Tests">
+            <directory>Unit</directory>
+        </testsuite>
+        <testsuite name="Integration Tests">
+            <directory>Integration</directory>
+        </testsuite>
+    </testsuites>
+
+    <source ignoreSuppressionOfDeprecations="true"
+            ignoreIndirectDeprecations="true"
+            restrictNotices="true"
+            restrictWarnings="true"
+    >
+        <include>
+            <directory>../../lib</directory>
+        </include>
+    </source>
+
+    <extensions>
+    </extensions>
+</phpunit>

tsconfig.app.json

@@ -1,6 +1,15 @@
 {
   "extends": "@vue/tsconfig/tsconfig.dom.json",
-  "include": ["src/**/*", "src/**/*.vue", "../../core/src/**/*.ts"],
+  "include": [
+    "src/**/*",
+    "src/**/*.vue",
+    "src/utile/**/*.ts",
+    "../../core/src/**/*.ts",
+    "../mail_manager/src/**/*.ts",
+    "../mail_manager/src/**/*.vue",
+    "../people_manager/src/**/*.ts",
+    "../people_manager/src/**/*.vue"
+  ],
   "exclude": ["src/**/__tests__/*"],
   "compilerOptions": {
     "composite": true,
@@ -8,7 +17,8 @@
       "@/*": ["./src/*"],
       "@KTXC": ["../../core/src/shared/index.ts"],
       "@KTXC/*": ["../../core/src/*"],
-      "@MailManager/*": ["../mail_manager/src/*"]
+      "@MailManager/*": ["../mail_manager/src/*"],
+      "@PeopleManager/*": ["../people_manager/src/*"]
     }
   }
 }

vite.config.ts

@@ -31,6 +31,7 @@ export default defineConfig({
       '@': path.resolve(__dirname, './src'),
       '@KTXC': path.resolve(__dirname, '../../core/src'),
       '@MailManager': path.resolve(__dirname, '../mail_manager/src'),
+      '@PeopleManager': path.resolve(__dirname, '../people_manager/src'),
     },
   },
   build: {
@@ -49,6 +50,7 @@ export default defineConfig({
         'pinia',
         '@KTXC',
         /^@MailManager\//,
+        /^@PeopleManager\//,
       ],
       output: {
         paths: (id) => {
@@ -56,6 +58,9 @@ export default defineConfig({
           if (id.startsWith('@MailManager/')) {
             return '/modules/mail_manager/static/module.mjs'
           }
+          if (id.startsWith('@PeopleManager/')) {
+            return '/modules/people_manager/static/module.mjs'
+          }
           return id
         },
         assetFileNames: (assetInfo) => {