移除残留的KnowU系统，修复gemini请求的思考签名问题

src/config/config.py

@@ -56,7 +56,7 @@ CONFIG_DIR: Path = PROJECT_ROOT / "config"
 BOT_CONFIG_PATH: Path = (CONFIG_DIR / "bot_config.toml").resolve().absolute()
 MODEL_CONFIG_PATH: Path = (CONFIG_DIR / "model_config.toml").resolve().absolute()
 MMC_VERSION: str = "1.0.0"
-CONFIG_VERSION: str = "8.4.1"
+CONFIG_VERSION: str = "8.5.0"
 MODEL_CONFIG_VERSION: str = "1.13.1"
 
 logger = get_logger("config")

src/config/official_configs.py

@@ -1456,15 +1456,6 @@ class MaiSakaConfig(ConfigBase):
 
     __ui_label__ = "MaiSaka"
     __ui_icon__ = "message-circle"
-
-    enable_knowledge_module: bool = Field(
-        default=True,
-        json_schema_extra={
-            "x-widget": "switch",
-            "x-icon": "book",
-        },
-    )
-    """启用知识库模块"""
     cli_user_name: str = Field(
         default="用户",
         json_schema_extra={