fix: complete openai_compat migration across all model bots

Replace all direct openai.error.* usages with the openai_compat
compatibility layer to support openai>=1.0.

Affected files:
- models/chatgpt/chat_gpt_bot.py: fix isinstance checks (RateLimitError, Timeout, APIError, APIConnectionError)
- models/openai/open_ai_bot.py: replace import + fix isinstance checks
- models/ali/ali_qwen_bot.py: replace import + fix isinstance checks
- models/modelscope/modelscope_bot.py: remove unused openai.error import

The openai_compat layer (models/openai/openai_compat.py) already
handles both openai<1.0 and openai>=1.0 gracefully. This completes
the migration started in the existing PR #2688.

models/ali/ali_qwen_bot.py

@@ -5,7 +5,7 @@ import time
 from typing import List, Tuple
 
 import openai
-import openai.error
+from models.openai.openai_compat import RateLimitError, Timeout, APIError, APIConnectionError
 import broadscope_bailian
 from broadscope_bailian import ChatQaMessage
 
@@ -115,22 +115,22 @@ class AliQwenBot(Bot):
         except Exception as e:
             need_retry = retry_count < 2
             result = {"completion_tokens": 0, "content": "我现在有点累了，等会再来吧"}
-            if isinstance(e, openai.error.RateLimitError):
+            if isinstance(e, RateLimitError):
                 logger.warn("[QWEN] RateLimitError: {}".format(e))
                 result["content"] = "提问太快啦，请休息一下再问我吧"
                 if need_retry:
                     time.sleep(20)
-            elif isinstance(e, openai.error.Timeout):
+            elif isinstance(e, Timeout):
                 logger.warn("[QWEN] Timeout: {}".format(e))
                 result["content"] = "我没有收到你的消息"
                 if need_retry:
                     time.sleep(5)
-            elif isinstance(e, openai.error.APIError):
+            elif isinstance(e, APIError):
                 logger.warn("[QWEN] Bad Gateway: {}".format(e))
                 result["content"] = "请再问我一次"
                 if need_retry:
                     time.sleep(10)
-            elif isinstance(e, openai.error.APIConnectionError):
+            elif isinstance(e, APIConnectionError):
                 logger.warn("[QWEN] APIConnectionError: {}".format(e))
                 need_retry = False
                 result["content"] = "我连接不到你的网络"

models/chatgpt/chat_gpt_bot.py

@@ -244,22 +244,22 @@ class ChatGPTBot(Bot, OpenAIImage, OpenAICompatibleBot):
         except Exception as e:
             need_retry = retry_count < 2
             result = {"completion_tokens": 0, "content": "我现在有点累了，等会再来吧"}
-            if isinstance(e, openai.error.RateLimitError):
+            if isinstance(e, RateLimitError):
                 logger.warn("[CHATGPT] RateLimitError: {}".format(e))
                 result["content"] = "提问太快啦，请休息一下再问我吧"
                 if need_retry:
                     time.sleep(20)
-            elif isinstance(e, openai.error.Timeout):
+            elif isinstance(e, Timeout):
                 logger.warn("[CHATGPT] Timeout: {}".format(e))
                 result["content"] = "我没有收到你的消息"
                 if need_retry:
                     time.sleep(5)
-            elif isinstance(e, openai.error.APIError):
+            elif isinstance(e, APIError):
                 logger.warn("[CHATGPT] Bad Gateway: {}".format(e))
                 result["content"] = "请再问我一次"
                 if need_retry:
                     time.sleep(10)
-            elif isinstance(e, openai.error.APIConnectionError):
+            elif isinstance(e, APIConnectionError):
                 logger.warn("[CHATGPT] APIConnectionError: {}".format(e))
                 result["content"] = "我连接不到你的网络"
                 if need_retry:

models/modelscope/modelscope_bot.py

@@ -3,7 +3,6 @@
 import time
 import json
 import openai
-import openai.error
 from models.bot import Bot
 from models.session_manager import SessionManager
 from bridge.context import ContextType

models/openai/open_ai_bot.py

@@ -3,7 +3,7 @@
 import time
 
 import openai
-import openai.error
+from models.openai.openai_compat import RateLimitError, Timeout, APIConnectionError
 
 from models.bot import Bot
 from models.openai_compatible_bot import OpenAICompatibleBot
@@ -109,17 +109,17 @@ class OpenAIBot(Bot, OpenAIImage, OpenAICompatibleBot):
         except Exception as e:
             need_retry = retry_count < 2
             result = {"completion_tokens": 0, "content": "我现在有点累了，等会再来吧"}
-            if isinstance(e, openai.error.RateLimitError):
+            if isinstance(e, RateLimitError):
                 logger.warn("[OPEN_AI] RateLimitError: {}".format(e))
                 result["content"] = "提问太快啦，请休息一下再问我吧"
                 if need_retry:
                     time.sleep(20)
-            elif isinstance(e, openai.error.Timeout):
+            elif isinstance(e, Timeout):
                 logger.warn("[OPEN_AI] Timeout: {}".format(e))
                 result["content"] = "我没有收到你的消息"
                 if need_retry:
                     time.sleep(5)
-            elif isinstance(e, openai.error.APIConnectionError):
+            elif isinstance(e, APIConnectionError):
                 logger.warn("[OPEN_AI] APIConnectionError: {}".format(e))
                 need_retry = False
                 result["content"] = "我连接不到你的网络"