feat: use mail manager and mail providers

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

src/integrations.ts

@@ -0,0 +1,24 @@
+import type { ModuleIntegrations } from '@KTXC/types/moduleTypes'
+
+const integrations: ModuleIntegrations = {
+  admin_settings_menu: [
+    {
+      id: 'system_mail',
+      label: 'System Mail',
+      path: '/system-mail',
+      icon: 'mdi-email-lock',
+      priority: 70,
+      caption: 'Manage system mail accounts and routing rules',
+    },
+  ],
+  mail_provider_details: [
+    {
+      id: 'system',
+      label: 'System Mail',
+      description: 'Rule-based routing for system-generated mail',
+      icon: 'mdi-email-lock',
+    },
+  ],
+}
+
+export default integrations