Update src/services/interview_history_router.py

src/services/interview_history_router.py

@@ -48,6 +48,11 @@ async def get_interview_history_by_id(history_id: str, db: AsyncIOMotorDatabase
     history = await InterviewHistoryModel.get(db, InterviewHistoryModel.collection_name, {"_id": ObjectId(history_id)})
     if history is None:
         raise HTTPException(status_code=404, detail="Interview history not found")
+    
+    # Convert ObjectId to string to satisfy Pydantic response model
+    if "_id" in history:
+        history["_id"] = str(history["_id"])
+        
     return history
 
 @router.put("/interview-histories/{history_id}", response_model=InterviewHistoryResponse)