refactor: Remove deprecated create_connector_indexed_notification method and add notification types

- Removed the deprecated create_connector_indexed_notification method from NotificationService.
- Introduced new notification types and schemas in notification.types.ts to standardize notification handling.
- Updated useNotifications hook to utilize the new notification type definitions.

surfsense_backend/app/services/notification_service.py

@@ -505,49 +505,3 @@ class NotificationService:
             },
         )
 
-    @staticmethod
-    async def create_connector_indexed_notification(
-        session: AsyncSession,
-        user_id: UUID,
-        connector_name: str,
-        connector_type: str,
-        status: str,
-        search_space_id: int,
-        indexed_count: int | None = None,
-    ) -> Notification:
-        """
-        Create notification when connector indexing completes.
-        DEPRECATED: Use NotificationService.connector_indexing methods instead.
-
-        Args:
-            session: Database session
-            user_id: User to notify
-            connector_name: Name of the connector
-            connector_type: Type of connector
-            status: Indexing status ('SUCCESS', 'FAILED')
-            search_space_id: Search space ID
-            indexed_count: Number of items indexed (optional)
-
-        Returns:
-            Notification: The created notification
-        """
-        status_lower = status.lower()
-        title = f"Connector indexed: {connector_name}"
-        message = f'Your connector "{connector_name}" has finished indexing ({status_lower}).'
-        if indexed_count is not None:
-            message += f" {indexed_count} items indexed."
-
-        return await NotificationService.create_notification(
-            session=session,
-            user_id=user_id,
-            notification_type="connector_indexed",
-            title=title,
-            message=message,
-            search_space_id=search_space_id,
-            notification_metadata={
-                "connector_name": connector_name,
-                "connector_type": connector_type,
-                "status": status,
-                "indexed_count": indexed_count,
-            },
-        )