Major Enhancement: NestJS Migration + CASL Authorization + Error Handling

Complete rewrite from Express to NestJS with enterprise-grade features:

## Backend Improvements
- Migrated from Express to NestJS 11.0.1 with TypeScript
- Implemented Prisma ORM 7.3.0 for type-safe database access
- Added CASL authorization system replacing role-based guards
- Created global exception filters with structured logging
- Implemented Auth0 JWT authentication with Passport.js
- Added vehicle management with conflict detection
- Enhanced event scheduling with driver/vehicle assignment
- Comprehensive error handling and logging

## Frontend Improvements
- Upgraded to React 19.2.0 with Vite 7.2.4
- Implemented CASL-based permission system
- Added AbilityContext for declarative permissions
- Created ErrorHandler utility for consistent error messages
- Enhanced API client with request/response logging
- Added War Room (Command Center) dashboard
- Created VIP Schedule view with complete itineraries
- Implemented Vehicle Management UI
- Added mock data generators for testing (288 events across 20 VIPs)

## New Features
- Vehicle fleet management (types, capacity, status tracking)
- Complete 3-day Jamboree schedule generation
- Individual VIP schedule pages with PDF export (planned)
- Real-time War Room dashboard with auto-refresh
- Permission-based navigation filtering
- First user auto-approval as administrator

## Documentation
- Created CASL_AUTHORIZATION.md (comprehensive guide)
- Created ERROR_HANDLING.md (error handling patterns)
- Updated CLAUDE.md with new architecture
- Added migration guides and best practices

## Technical Debt Resolved
- Removed custom authentication in favor of Auth0
- Replaced role checks with CASL abilities
- Standardized error responses across API
- Implemented proper TypeScript typing
- Added comprehensive logging

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

frontend-old-20260125/src/tests/setup.ts

@@ -0,0 +1,84 @@
+import '@testing-library/jest-dom';
+import { cleanup } from '@testing-library/react';
+import { afterEach, vi } from 'vitest';
+
+// Cleanup after each test
+afterEach(() => {
+  cleanup();
+});
+
+// Mock window.matchMedia
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation(query => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(), // deprecated
+    removeListener: vi.fn(), // deprecated
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+});
+
+// Mock IntersectionObserver
+global.IntersectionObserver = vi.fn().mockImplementation(() => ({
+  observe: vi.fn(),
+  unobserve: vi.fn(),
+  disconnect: vi.fn(),
+}));
+
+// Mock fetch globally
+global.fetch = vi.fn();
+
+// Reset mocks before each test
+beforeEach(() => {
+  vi.clearAllMocks();
+  
+  // Default fetch mock
+  (global.fetch as any).mockResolvedValue({
+    ok: true,
+    json: async () => ({}),
+    text: async () => '',
+    status: 200,
+    statusText: 'OK',
+  });
+});
+
+// Mock Google Identity Services
+(global as any).google = {
+  accounts: {
+    id: {
+      initialize: vi.fn(),
+      renderButton: vi.fn(),
+      prompt: vi.fn(),
+      disableAutoSelect: vi.fn(),
+      storeCredential: vi.fn(),
+      cancel: vi.fn(),
+      onGoogleLibraryLoad: vi.fn(),
+      revoke: vi.fn(),
+    },
+    oauth2: {
+      initTokenClient: vi.fn(),
+      initCodeClient: vi.fn(),
+      hasGrantedAnyScope: vi.fn(),
+      hasGrantedAllScopes: vi.fn(),
+      revoke: vi.fn(),
+    },
+  },
+};
+
+// Mock console methods to reduce test noise
+const originalError = console.error;
+const originalWarn = console.warn;
+
+beforeAll(() => {
+  console.error = vi.fn();
+  console.warn = vi.fn();
+});
+
+afterAll(() => {
+  console.error = originalError;
+  console.warn = originalWarn;
+});