Removed endpoints for starting/stopping/restarting the Worker service. Controller now uses JobStateManager to get and set the state of specific jobs (e.g., FinalizeDocumentJob) through new GET and POST endpoints. Focus shifts from service lifecycle control to job state management.
Introduced a new WorkerController with endpoints to start, stop, and restart the background Worker service via HTTP API. The controller uses dependency injection to locate the Worker instance and logs each operation. Also removed an unused Controllers folder reference from the project file.
