update

src/server/main.py

@@ -406,7 +406,6 @@ async def translate(
     
 from fastapi import FastAPI, File, HTTPException, Request, UploadFile, Form, Query
 from pydantic import BaseModel, Field
-
 class VisualQueryResponse(BaseModel):
     answer: str
 
@@ -474,11 +473,11 @@ async def visual_query(
         response.raise_for_status()
         
         response_data = response.json()
-        answer = response_data.get("answer", "")
+        answer = response_data.get("response", "")
         
         if not answer:
-            logger.warning(f"Empty answer received from external API: {response_data}")
-            raise HTTPException(status_code=500, detail="No answer provided by visual query service")
+            logger.warning(f"Empty or missing 'response' field in external API response: {response_data}")
+            raise HTTPException(status_code=500, detail="No valid response provided by visual query service")
         
         logger.info(f"Visual query successful: {answer}")
         return VisualQueryResponse(answer=answer)
@@ -492,7 +491,8 @@ async def visual_query(
     except ValueError as e:
         logger.error(f"Invalid JSON response: {str(e)}")
         raise HTTPException(status_code=500, detail="Invalid response format from visual query service")
-    
+
+
 from enum import Enum
 
 class SupportedLanguage(str, Enum):