refactor(types): move Auth and Route namespaces to separate files and clean up api.d.ts

src/typings/api/route.d.ts

@@ -0,0 +1,19 @@
+declare namespace Api {
+  /**
+   * namespace Route
+   *
+   * backend api module: "route"
+   */
+  namespace Route {
+    type ElegantConstRoute = import('@elegant-router/types').ElegantConstRoute;
+
+    interface MenuRoute extends ElegantConstRoute {
+      id: string;
+    }
+
+    interface UserRoute {
+      routes: MenuRoute[];
+      home: import('@elegant-router/types').LastLevelRouteKey;
+    }
+  }
+}