Fix str passed to json

cloud/safety_checker.py

@@ -33,7 +33,7 @@ def check_dish_safety(image_path: str) -> dict:
     response_raw = generate(
         prompt=prompt,
         images=[image_path],
-        output_format=DISH_SAFETY_SCHEMA  # Passed as Ollama's `format` parameter
+        output_format=json.dumps(DISH_SAFETY_SCHEMA)
     )
     print(f"[Debug] Raw response from AI generator: {response_raw}")
 
@@ -41,8 +41,4 @@ def check_dish_safety(image_path: str) -> dict:
     if isinstance(response_raw, dict):
         return response_raw
 
-    # 2. If it's a string or bytes, parse it
-    if isinstance(response_raw, (str, bytes, bytearray)):
-        return json.loads(response_raw)
-
     raise ValueError(f"Unexpected response type from AI generator: {type(response_raw)}")