feat: AI coordination protocol and advanced audit operations

backend/routers/operations.py

@@ -60,3 +60,65 @@ def check_out_item(op: schemas.OperationCreate, db: Session = Depends(get_db)):
     db.commit()
     db.refresh(item)
     return item
+
+@router.post("/trash", response_model=schemas.Item)
+def trash_item(op: schemas.TrashOperationCreate, db: Session = Depends(get_db)):
+    if op.quantity <= 0:
+         raise HTTPException(status_code=400, detail="Quantity must be greater than zero")
+         
+    item = db.query(models.Item).filter(models.Item.barcode == op.barcode).first()
+    if not item:
+        raise HTTPException(status_code=404, detail="Item not found")
+        
+    if item.quantity < op.quantity:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Insufficient stock to trash")
+        
+    # Update quantity
+    item.quantity -= op.quantity
+        
+    # Create Mandatory Audit Log with TRASH action and reason
+    audit = models.AuditLog(
+        user_id=op.user_id,
+        action=f"TRASH: {op.reason}",
+        target_item_id=item.id,
+        quantity_change=-op.quantity
+    )
+    
+    db.add(audit)
+    db.commit()
+    db.refresh(item)
+    return item
+
+@router.post("/bulk-check-out")
+def bulk_check_out(bulk_op: schemas.BulkOperationCreate, db: Session = Depends(get_db)):
+    results = {"success": [], "errors": []}
+    
+    for op in bulk_op.items:
+        try:
+            item = db.query(models.Item).filter(models.Item.barcode == op.barcode).first()
+            if not item:
+                results["errors"].append({"barcode": op.barcode, "error": "Not found"})
+                continue
+                
+            if item.quantity < op.quantity:
+                results["errors"].append({"barcode": op.barcode, "error": f"Insufficient stock (Available: {item.quantity})"})
+                continue
+            
+            # Update quantity
+            item.quantity -= op.quantity
+            
+            # Log individual audit for this item
+            audit = models.AuditLog(
+                user_id=bulk_op.user_id,
+                action="BULK_CHECK_OUT",
+                target_item_id=item.id,
+                quantity_change=-op.quantity
+            )
+            db.add(audit)
+            results["success"].append({"barcode": op.barcode, "new_quantity": item.quantity})
+            
+        except Exception as e:
+            results["errors"].append({"barcode": op.barcode, "error": str(e)})
+            
+    db.commit()
+    return results