feat: wire order watcher into admin topbar bell (badge + panel)

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

src/app/features/admin/shell/admin-layout.component.spec.ts

@@ -0,0 +1,76 @@
+import { TestBed } from '@angular/core/testing';
+import { provideRouter } from '@angular/router';
+import { signal } from '@angular/core';
+import { AdminLayoutComponent } from './admin-layout.component';
+import { AdminOrderWatcherService } from './services/admin-order-watcher.service';
+import { AdminOrder } from '../orders/models/admin-order.model';
+
+function makeOrder(id: string, orderNumber: string): AdminOrder {
+  return {
+    id,
+    orderNumber,
+    status: 'pending',
+    customer: { name: 'Test Customer', email: 't@example.com', phone: '' },
+    payment: { method: 'card', status: 'paid', amount: 500, currency: 'RUB' },
+    shipping: { address: '', method: '', trackingNumber: '' },
+    items: [],
+    total: 500,
+    currency: 'RUB',
+    notes: '',
+    internalNotes: '',
+    timeline: [],
+    archived: false,
+    createdAt: '2026-08-15T10:00:00.000Z',
+    updatedAt: '2026-08-15T10:00:00.000Z',
+  };
+}
+
+describe('AdminLayoutComponent notifications bell', () => {
+  let watcherStub: {
+    recentOrders: ReturnType<typeof signal<AdminOrder[]>>;
+    unreadCount: ReturnType<typeof signal<number>>;
+    start: jasmine.Spy;
+    markAllSeen: jasmine.Spy;
+  };
+
+  beforeEach(() => {
+    watcherStub = {
+      recentOrders: signal<AdminOrder[]>([makeOrder('o1', '1001')]),
+      unreadCount: signal(1),
+      start: jasmine.createSpy('start'),
+      markAllSeen: jasmine.createSpy('markAllSeen'),
+    };
+
+    TestBed.configureTestingModule({
+      imports: [AdminLayoutComponent],
+      providers: [
+        provideRouter([]),
+        { provide: AdminOrderWatcherService, useValue: watcherStub },
+      ],
+    });
+  });
+
+  it('starts the watcher once on construction', () => {
+    TestBed.createComponent(AdminLayoutComponent);
+    expect(watcherStub.start).toHaveBeenCalledTimes(1);
+  });
+
+  it('exposes unreadCount and recentOrders from the watcher', () => {
+    const fixture = TestBed.createComponent(AdminLayoutComponent);
+    const component = fixture.componentInstance;
+    expect(component.unreadCount()).toBe(1);
+    expect(component.recentOrders().map(o => o.id)).toEqual(['o1']);
+  });
+
+  it('marks orders seen when the notifications panel opens', () => {
+    const fixture = TestBed.createComponent(AdminLayoutComponent);
+    const component = fixture.componentInstance;
+    component.toggleNotifications();
+    expect(component.notificationsOpen()).toBe(true);
+    expect(watcherStub.markAllSeen).toHaveBeenCalledTimes(1);
+
+    component.toggleNotifications();
+    expect(component.notificationsOpen()).toBe(false);
+    expect(watcherStub.markAllSeen).toHaveBeenCalledTimes(1);
+  });
+});