- Added the `/clean` route to the route for session cleanup
- Added the `DeleteInactiveSessions` method to support deleting inactive sessions by user ID
- Added the `DeleteSessionByID` method to delete a specific session by session ID
- Defined the `CleanSessionsReq` request structure to support passing a user ID or session ID
- Implemented the `CleanSessions` interface logic to perform corresponding session cleanup operations based on the request parameters