Add dataset, slurm_id, and FAILED status to models

Enhanced the models with new fields: a dataset field for Experiment Parameters and a slurm_id for Jobs. Introduced a FAILED status for the JobStatus enum. Updated functionality to handle datasets and trigger job creation based on dataset status.

backend/app/routers/processing.py

@@ -41,6 +41,7 @@ async def job_event_generator(db: Session):
                 experiment_parameters=experiment.beamline_parameters
                 if experiment
                 else None,
+                slurm_id=None,
             )
 
             job_items.append(job_item)
@@ -75,13 +76,14 @@ def update_jobs_status(payload: JobsUpdate, db: Session = Depends(get_db)):
 
     # Update the status
     job.status = payload.status
+    job.slurm_id = payload.slurm_id
     # Optionally update 'updated_at'
-    from sqlalchemy import func
+    from datetime import datetime
 
-    job.updated_at = func.now()
+    job.updated_at = datetime.now()
 
     db.commit()
     db.refresh(job)
 
     # Return the updated job's info as response
-    return JobsUpdate(job_id=job.id, status=job.status)
+    return JobsUpdate(job_id=job.id, status=job.status, slurm_id=job.slurm_id)