feat(web): add dashboard SPA routing

ts_web/appstate.ts

@@ -11,6 +11,33 @@ export const loginStatePart: plugins.smartstate.StatePart<unknown, ILoginState>
   'persistent'
 );
 
+export interface IUiState {
+  activeView: string;
+  activeSubview: string | null;
+}
+
+const getInitialView = (): string => {
+  const path = typeof window !== 'undefined' ? window.location.pathname : '/';
+  const validViews = ['overview', 'platform', 'runtime', 'registry', 'secrets', 'domains', 'storage', 'logs'];
+  const segments = path.split('/').filter(Boolean);
+  const view = segments[0];
+  return validViews.includes(view) ? view : 'overview';
+};
+
+const getInitialSubview = (): string | null => {
+  const path = typeof window !== 'undefined' ? window.location.pathname : '/';
+  const segments = path.split('/').filter(Boolean);
+  return segments[1] ?? null;
+};
+
+export const uiStatePart = await appstate.getStatePart<IUiState>(
+  'ui',
+  {
+    activeView: getInitialView(),
+    activeSubview: getInitialSubview(),
+  },
+);
+
 export const loginAction = loginStatePart.createAction<{ username: string; password: string }>(
   async (statePartArg, payloadArg) => {
     const currentState = statePartArg.getState() || { identity: null };