Add mount_count and unmount_count tracking for samples

Introduced `mount_count` and `unmount_count` fields to track mounting events for samples. Updated models, schemas, and front-end components to support dynamic calculation and display of these counts. Enhanced backend queries and API responses to include the new data.

backend/app/routers/sample.py

@@ -9,6 +9,7 @@ from app.schemas import (
     Sample as SampleSchema,
     SampleEventResponse,
     SampleEventCreate,
+    Sample,
 )
 from app.models import (
     Puck as PuckModel,
@@ -17,6 +18,8 @@ from app.models import (
 )
 from app.dependencies import get_db
 import logging
+from sqlalchemy.orm import joinedload
+
 
 router = APIRouter()
 
@@ -43,22 +46,25 @@ async def get_samples_with_events(puck_id: int, db: Session = Depends(get_db)):
 async def get_all_pucks_with_samples_and_events(db: Session = Depends(get_db)):
     logging.info("Fetching all pucks with samples and events")
 
-    pucks = db.query(PuckModel).all()
-    logging.info(f"Found {len(pucks)} pucks in the database")
-    for puck in pucks:
-        if puck.dewar_id is None:
-            puck.dewar_id = -1
-        logging.info(f"Puck ID: {puck.id}, Name: {puck.puck_name}")
+    pucks = (
+        db.query(PuckModel)
+        .options(
+            joinedload(PuckModel.samples).joinedload(
+                SampleModel.events
+            ),  # Correct nested relationship
+            joinedload(PuckModel.events),  # If Puck has its own events relationship
+        )
+        .all()
+    )
 
     if not pucks:
-        raise HTTPException(
-            status_code=404, detail="No pucks found in the database"
-        )  # More descriptive
+        raise HTTPException(status_code=404, detail="No pucks found in the database")
+
     return pucks
 
 
 # Route to post a new sample event
-@router.post("/samples/{sample_id}/events", response_model=SampleEventResponse)
+@router.post("/samples/{sample_id}/events", response_model=Sample)
 async def create_sample_event(
     sample_id: int, event: SampleEventCreate, db: Session = Depends(get_db)
 ):
@@ -77,10 +83,13 @@ async def create_sample_event(
     db.commit()
     db.refresh(sample_event)
 
-    return (
-        sample_event  # Response will automatically use the SampleEventResponse schema
+    # Load events for the sample to be serialized in the response
+    sample.events = (
+        db.query(SampleEventModel).filter(SampleEventModel.sample_id == sample_id).all()
     )
 
+    return sample  # Return the sample, now including `mount_count`
+
 
 # Route to fetch the last (most recent) sample event
 @router.get("/samples/{sample_id}/events/last", response_model=SampleEventResponse)