AI Implementation feature(820): Project Scaffold and Platform Foundations (#1)

tests/frontend/jest.setup.ts

@@ -0,0 +1,13 @@
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: jest.fn().mockImplementation((query) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: jest.fn(),
+    removeListener: jest.fn(),
+    addEventListener: jest.fn(),
+    removeEventListener: jest.fn(),
+    dispatchEvent: jest.fn(),
+  })),
+});

tests/frontend/theme.spec.ts

@@ -0,0 +1,29 @@
+import { ThemeLoaderService, BUILTIN_THEMES } from '../../backend/src/common/utils/theme-loader.service';
+
+describe('ThemeLoaderService builtins', () => {
+  it('includes all 10 canonical theme ids', () => {
+    const ids = BUILTIN_THEMES.map((t) => t.id).sort();
+    expect(ids).toEqual([
+      'classic', 'crimson', 'cyber', 'forest', 'midnight',
+      'monochrome', 'neon', 'ocean', 'paper', 'sunset',
+    ]);
+  });
+
+  it('every builtin theme has full tokens', () => {
+    for (const t of BUILTIN_THEMES) {
+      expect(t.tokens.primary).toMatch(/^#/);
+      expect(t.tokens.radii.sm).toBeTruthy();
+      expect(t.tokens.spacingScale.length).toBeGreaterThan(0);
+    }
+  });
+
+  it('falls back to default for unknown id', () => {
+    const config = { get: jest.fn((k: string, d: any) => d) } as any;
+    const settings = { get: jest.fn().mockResolvedValue('classic') } as any;
+    const svc = new ThemeLoaderService(config, settings);
+    return svc.onModuleInit().then(() => {
+      const t = svc.getTheme('totally-unknown');
+      expect(t.id).toBe('classic');
+    });
+  });
+});