refactor: 推进后端分层架构治理

app/application/plugin/routes.py

@@ -0,0 +1,15 @@
+"""动态插件路由应用端口。"""
+
+from typing import Optional, Protocol
+
+
+class DynamicRouteRegistry(Protocol):
+    """插件生命周期操作动态 HTTP 路由所需的最小端口。"""
+
+    def update(self, plugin_id: Optional[str], action: str) -> None:
+        """新增或移除指定插件的动态路由。"""
+        ...
+
+    def remove(self, plugin_id: str) -> bool:
+        """移除指定插件的全部动态路由。"""
+        ...