Add beamtime functionality to backend.

Introduce new endpoint and model for managing beamtimes, including shifts and user-specific access. Updated test scripts and data to reflect beamtime integration, along with minor fixes for job status enumeration and example notebook refinement.

backend/app/routers/beamtime.py

@@ -0,0 +1,72 @@
+from fastapi import APIRouter, HTTPException, status, Depends
+from sqlalchemy.orm import Session
+from sqlalchemy import or_
+
+from app.models import Beamtime as BeamtimeModel
+from app.schemas import Beamtime as BeamtimeSchema, BeamtimeCreate, loginData
+from app.dependencies import get_db
+from app.routers.auth import get_current_user
+
+beamtime_router = APIRouter()
+
+
+@beamtime_router.post("/", response_model=BeamtimeSchema)
+async def create_beamtime(
+    beamtime: BeamtimeCreate,
+    db: Session = Depends(get_db),
+    current_user: loginData = Depends(get_current_user),
+):
+    # Validate the pgroup belongs to the current user
+    if beamtime.pgroups not in current_user.pgroups:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="You do not have permission to create a beamtime for this pgroup.",
+        )
+
+    # Check for existing beamtime for this pgroup, date, and shift
+    existing = (
+        db.query(BeamtimeModel)
+        .filter(
+            BeamtimeModel.pgroups == beamtime.pgroups,
+            BeamtimeModel.start_date == beamtime.start_date,
+            BeamtimeModel.shift == beamtime.shift,
+        )
+        .first()
+    )
+    if existing:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="A beamtime for this pgroup/shift/date already exists.",
+        )
+
+    db_beamtime = BeamtimeModel(
+        pgroups=beamtime.pgroups,
+        shift=beamtime.shift,
+        beamtime_name=beamtime.beamtime_name,
+        beamline=beamtime.beamline,
+        start_date=beamtime.start_date,
+        end_date=beamtime.end_date,
+        status=beamtime.status,
+        comments=beamtime.comments,
+        proposal_id=beamtime.proposal_id,
+        local_contact_id=beamtime.local_contact_id,
+    )
+
+    db.add(db_beamtime)
+    db.commit()
+    db.refresh(db_beamtime)
+    return db_beamtime
+
+
+@beamtime_router.get(
+    "/my-beamtimes",
+    response_model=list[BeamtimeSchema],
+)
+async def get_my_beamtimes(
+    db: Session = Depends(get_db),
+    current_user: loginData = Depends(get_current_user),
+):
+    user_pgroups = current_user.pgroups
+    filters = [BeamtimeModel.pgroups.like(f"%{pgroup}%") for pgroup in user_pgroups]
+    beamtimes = db.query(BeamtimeModel).filter(or_(*filters)).all()
+    return beamtimes