Enhance Dewar handling and display in logistics system

Added new fields and enriched data representations in DewarStatusTab, backend schemas, and APIs to improve dewar tracking and management. Introduced new API endpoint `/dewar/table` for simplified data rendering. Applied logging and validations for missing relationships.

backend/app/routers/logistics.py

@@ -7,7 +7,14 @@ from ..models import (
     Slot as SlotModel,
     LogisticsEvent as LogisticsEventModel,
 )
-from ..schemas import LogisticsEventCreate, SlotSchema, Dewar as DewarSchema
+from ..schemas import (
+    LogisticsEventCreate,
+    SlotSchema,
+    Dewar as DewarSchema,
+    DewarTable,
+    ContactMinimal,
+    AddressMinimal,
+)
 from ..database import get_db
 import logging
 from datetime import datetime, timedelta
@@ -342,6 +349,64 @@ async def get_all_dewars(db: Session = Depends(get_db)):
     return dewars
 
 
+@router.get("/dewar/table", response_model=List[DewarTable])
+async def get_all_dewars_table(db: Session = Depends(get_db)):
+    dewars = db.query(DewarModel).all()
+
+    # Flatten relationships for simplified frontend rendering
+    response = []
+    for dewar in dewars:
+        response.append(
+            DewarTable(
+                id=dewar.id,
+                shipment_id=dewar.shipment_id
+                if hasattr(dewar, "shipment_id")
+                else None,
+                dewar_name=dewar.dewar_name,
+                shipment_name=dewar.shipment.shipment_name if dewar.shipment else "N/A",
+                # Use the most recent event if available
+                status=dewar.events[-1].event_type if dewar.events else "No Events",
+                tracking_number=dewar.tracking_number or "N/A",
+                slot_id=dewar.slot[0].id
+                if dewar.slot
+                else None,  # Use first slot if available
+                contact=[
+                    ContactMinimal(
+                        firstname=dewar.contact.firstname,
+                        lastname=dewar.contact.lastname,
+                        email=dewar.contact.email,
+                        id=dewar.contact.id,
+                    )
+                ]
+                if dewar.contact
+                else [],
+                address=[
+                    AddressMinimal(
+                        house_number=dewar.return_address.house_number,
+                        street=dewar.return_address.street,
+                        city=dewar.return_address.city,
+                        state=dewar.return_address.state,
+                        country=dewar.return_address.country,
+                        zipcode=dewar.return_address.zipcode,
+                        id=dewar.return_address.id,
+                    )
+                ]
+                if dewar.return_address
+                else [],
+                events=dewar.events[-1].slot_id if dewar.events else "No Events",
+                last_updated=dewar.events[-1].timestamp if dewar.events else None,
+            )
+        )
+
+        # Add logging for missing relationships
+        if not hasattr(dewar, "pgroups"):
+            logger.warning(f"Dewar {dewar.id} is missing 'pgroups'")
+        if not hasattr(dewar, "shipment_id"):
+            logger.warning(f"Dewar {dewar.id} is missing 'shipment_id'")
+
+    return response
+
+
 @router.get("/dewar/{unique_id}", response_model=DewarSchema)
 async def get_dewar_by_unique_id(unique_id: str, db: Session = Depends(get_db)):
     logger.info(f"Received request for dewar with unique_id: {unique_id}")