feat: implement standardized protocol

Signed-off-by: Sebastian <krupinski01@gmail.com>

src/components/MessageComposer.vue

@@ -131,11 +131,11 @@ const saveDraft = async () => {
       provider: props.folder.provider,
       service: props.folder.service,
       collection: props.folder.identifier, // Should be drafts folder ID
-      data: draftData,
+      properties: draftData,
     })
     
-    if (response && response.entity) {
-      draftId.value = response.entity.identifier
+    if (response) {
+      draftId.value = String(response.identifier)
     }
     
     lastSaved.value = new Date()
@@ -187,7 +187,7 @@ const handleSend = async () => {
   sending.value = true
   
   try {
-    await entityService.send({
+    await entityService.transmit({
       message: {
         to: to.value,
         cc: cc.value.length > 0 ? cc.value : undefined,
@@ -203,7 +203,7 @@ const handleSend = async () => {
     // Delete draft if it was saved
     if (draftId.value && props.folder) {
       try {
-        await entityService.destroy({
+        await entityService.delete({
           provider: props.folder.provider,
           service: props.folder.service,
           collection: props.folder.identifier,