refactor(notification): 建立通知渠道通用管理契约 channel_manage

- schemas 层新增 NotificationAction 公共动作词汇表（状态/二维码/退出/连通性/缓存迁移）
- 模块实现统一 channel_manage(channel, action, **params)，按渠道名路由，
  非本渠道返回 None；动作语义、表单参数解释与临时参数初始化封闭在模块内
- NotificationChain 收敛为单一 manage_channel 纯透明转发，
  chain 层不再出现任何渠道名与模块特色
- endpoint 路由路径保持前端兼容，内部统一走通用接口
- 新增 6 项契约守护测试，文档记录通用模式：新渠道接入无需改 chain

app/chain/notification.py

@@ -1,114 +1,30 @@
-from typing import Any, Dict, Tuple
+from typing import Any, Dict
 
 from app.chain import ChainBase
+from app.schemas.types import MessageChannel, NotificationAction
 
 
 class NotificationChain(ChainBase):
     """
-    通知渠道管理链，仅做模块方法名契约的薄分发，渠道连接与能力全部封闭在模块内部
+    通知渠道管理链，仅按渠道名透明转发管理动作到模块
+
+    不包含任何渠道特定逻辑：动作语义、表单参数解释、客户端实例解析与
+    临时参数初始化全部封闭在实现 channel_manage 契约的模块内部
     """
 
-    def get_wechatclawbot_status(
+    def manage_channel(
             self,
-            source=None,
-            fallback_source=None,
-            WECHATCLAWBOT_BASE_URL=None,
-            WECHATCLAWBOT_DEFAULT_TARGET=None,
-            WECHATCLAWBOT_ADMINS=None,
-            WECHATCLAWBOT_POLL_TIMEOUT=None,
-            refresh_remote: bool = True,
-            auto_generate_qrcode: bool = True,
+            channel: MessageChannel,
+            action: NotificationAction,
+            **params: Any,
     ) -> Dict[str, Any]:
-        """查询微信 ClawBot 登录状态与二维码。"""
-        result = self.run_module(
-            "wechatclawbot_status",
-            source=source,
-            fallback_source=fallback_source,
-            WECHATCLAWBOT_BASE_URL=WECHATCLAWBOT_BASE_URL,
-            WECHATCLAWBOT_DEFAULT_TARGET=WECHATCLAWBOT_DEFAULT_TARGET,
-            WECHATCLAWBOT_ADMINS=WECHATCLAWBOT_ADMINS,
-            WECHATCLAWBOT_POLL_TIMEOUT=WECHATCLAWBOT_POLL_TIMEOUT,
-            refresh_remote=refresh_remote,
-            auto_generate_qrcode=auto_generate_qrcode,
-        )
-        return result or {"success": False, "message": "微信 ClawBot 通知未启用或配置尚未保存"}
+        """
+        对指定通知渠道执行管理动作
 
-    def refresh_wechatclawbot_qrcode(
-            self,
-            source=None,
-            fallback_source=None,
-            WECHATCLAWBOT_BASE_URL=None,
-            WECHATCLAWBOT_DEFAULT_TARGET=None,
-            WECHATCLAWBOT_ADMINS=None,
-            WECHATCLAWBOT_POLL_TIMEOUT=None,
-    ) -> Dict[str, Any]:
-        """刷新微信 ClawBot 登录二维码。"""
-        result = self.run_module(
-            "wechatclawbot_refresh_qrcode",
-            source=source,
-            fallback_source=fallback_source,
-            WECHATCLAWBOT_BASE_URL=WECHATCLAWBOT_BASE_URL,
-            WECHATCLAWBOT_DEFAULT_TARGET=WECHATCLAWBOT_DEFAULT_TARGET,
-            WECHATCLAWBOT_ADMINS=WECHATCLAWBOT_ADMINS,
-            WECHATCLAWBOT_POLL_TIMEOUT=WECHATCLAWBOT_POLL_TIMEOUT,
-        )
-        return result or {"success": False, "message": "微信 ClawBot 通知未启用或配置尚未保存"}
-
-    def logout_wechatclawbot(
-            self,
-            source=None,
-            fallback_source=None,
-            WECHATCLAWBOT_BASE_URL=None,
-            WECHATCLAWBOT_DEFAULT_TARGET=None,
-            WECHATCLAWBOT_ADMINS=None,
-            WECHATCLAWBOT_POLL_TIMEOUT=None,
-    ) -> Dict[str, Any]:
-        """退出微信 ClawBot 登录。"""
-        result = self.run_module(
-            "wechatclawbot_logout",
-            source=source,
-            fallback_source=fallback_source,
-            WECHATCLAWBOT_BASE_URL=WECHATCLAWBOT_BASE_URL,
-            WECHATCLAWBOT_DEFAULT_TARGET=WECHATCLAWBOT_DEFAULT_TARGET,
-            WECHATCLAWBOT_ADMINS=WECHATCLAWBOT_ADMINS,
-            WECHATCLAWBOT_POLL_TIMEOUT=WECHATCLAWBOT_POLL_TIMEOUT,
-        )
-        return result or {"success": False, "message": "微信 ClawBot 通知未启用或配置尚未保存"}
-
-    def test_wechatclawbot_connection(
-            self,
-            source=None,
-            fallback_source=None,
-            WECHATCLAWBOT_BASE_URL=None,
-            WECHATCLAWBOT_DEFAULT_TARGET=None,
-            WECHATCLAWBOT_ADMINS=None,
-            WECHATCLAWBOT_POLL_TIMEOUT=None,
-    ) -> Dict[str, Any]:
-        """测试微信 ClawBot 当前登录态是否可用。"""
-        result = self.run_module(
-            "wechatclawbot_test_connection",
-            source=source,
-            fallback_source=fallback_source,
-            WECHATCLAWBOT_BASE_URL=WECHATCLAWBOT_BASE_URL,
-            WECHATCLAWBOT_DEFAULT_TARGET=WECHATCLAWBOT_DEFAULT_TARGET,
-            WECHATCLAWBOT_ADMINS=WECHATCLAWBOT_ADMINS,
-            WECHATCLAWBOT_POLL_TIMEOUT=WECHATCLAWBOT_POLL_TIMEOUT,
-        )
-        return result or {"success": False, "message": "微信 ClawBot 通知未启用或配置尚未保存"}
-
-    def migrate_wechatclawbot_cache(
-            self,
-            old_name: str,
-            new_name: str,
-            cleanup_old: bool = False,
-            overwrite: bool = False,
-    ) -> Tuple[bool, str]:
-        """在通知名称变更时迁移对应的微信 ClawBot 登录缓存。"""
-        result = self.run_module(
-            "wechatclawbot_migrate_cache",
-            old_name=old_name,
-            new_name=new_name,
-            cleanup_old=cleanup_old,
-            overwrite=overwrite,
-        )
-        return result or (False, "微信 ClawBot 通知未启用")
+        :param channel: 渠道标识，用于模块路由
+        :param action: 通用管理动作，具体语义由渠道模块解释
+        :param params: 表单与动作参数，原样透传给模块
+        :return: 统一结构 {"success": bool, "message": ..., ...}
+        """
+        result = self.run_module("channel_manage", channel=channel, action=action, **params)
+        return result or {"success": False, "message": "该通知渠道未启用或不支持此管理动作"}