fix: 清理TelegramAdapter无用变量并通过lint

src/application/services/message_processing_service.py

@@ -4,8 +4,8 @@ from collections import Counter
 from astrbot.api.event import AstrMessageEvent
 from astrbot.api.star import Context
 
-from ...utils.logger import logger
 from ...infrastructure.persistence.telegram_group_registry import TelegramGroupRegistry
+from ...utils.logger import logger
 
 
 class MessageProcessingService:

src/infrastructure/platform/adapters/telegram_adapter.py

@@ -92,7 +92,6 @@ class TelegramAdapter(PlatformAdapter):
         2. 回退：从插件的 KV 存储中获取已知群组 (需注入插件实例)
         """
         groups = []
-        client = self._telegram_client
 
         # 1. 尝试 API (目前 python-telegram-bot 不支持直接列出所有 chat)
         # 如果 client 有扩展方法或未来支持，可在此实现