feat: support final answer and add log

app.py

@@ -59,15 +59,24 @@ def respond(
 
     try:
         with requests.post(API_URL, headers=headers, json=data) as r:
+            print(f"[INFO] response status: {r.status_code}")
             if r.status_code == 200:
                 json_response = r.json()
+                print(f"[INFO] response json: {json_response}")
                 if 'choices' in json_response and len(json_response['choices']) > 0:
                     content = json_response['choices'][0].get('message', {}).get('content', '')
+                    print(f"[INFO] response content: {content}")
                     if content:
                         if '<think>' in content and '</think>' in content:
                             content = content.split('</think>')[-1].strip()
-                        print(f"[INFO] response: {content}")
+                        if '**Final Answer**' in content:
+                            content = content.split('**Final Answer**')[-1].strip()
+                        print(f"[INFO] final response: {content}")
                         return content
+                else:
+                    print(f"[ERROR] No choices in response: {json_response}")
+            else:
+                print(f"[ERROR] Bad status code: {r.status_code}, response: {r.text}")
             return "Service temporarily unavailable"
     except Exception as e:
         print(f"[ERROR] Request error: {e}")