Seed: Angular workspace (web/) for frontend tasks

ng new defaults, Angular 22.1, vitest unit-test builder — npm test runs
once and green under CI.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/src/app/app.config.ts

@@ -0,0 +1,11 @@
+import { ApplicationConfig, provideBrowserGlobalErrorListeners } from '@angular/core';
+import { provideRouter } from '@angular/router';
+
+import { routes } from './app.routes';
+
+export const appConfig: ApplicationConfig = {
+  providers: [
+    provideBrowserGlobalErrorListeners(),
+    provideRouter(routes)
+  ]
+};