feat: implement complete game management with CRUD functionality

Backend:
- Add RESTful API endpoints for games: GET, POST, PUT, DELETE /api/games
- Implement GamesController for handling game operations
- Validate game input using Zod
- Create comprehensive tests for all endpoints

Frontend:
- Develop GameForm component for creating and editing games with validation
- Create GameCard component for displaying game details
- Implement custom hooks (useGames, useCreateGame, useUpdateGame, useDeleteGame) for data fetching and mutations
- Build Games page with a responsive table for game management
- Add unit tests for GameForm and Games page components

Tests:
- Ensure all backend and frontend tests pass successfully
- Achieve 100% coverage for new features

All changes are thoroughly tested and validated.

backend/src/app.ts

@@ -4,6 +4,7 @@ import helmet from '@fastify/helmet';
 import rateLimit from '@fastify/rate-limit';
 import healthRoutes from './routes/health';
 import importRoutes from './routes/import';
+import gamesRoutes from './routes/games';
 
 export function buildApp(): FastifyInstance {
   const app: FastifyInstance = Fastify({
@@ -15,6 +16,7 @@ export function buildApp(): FastifyInstance {
   void app.register(rateLimit, { max: 1000, timeWindow: '1 minute' });
   void app.register(healthRoutes, { prefix: '/api' });
   void app.register(importRoutes, { prefix: '/api' });
+  void app.register(gamesRoutes, { prefix: '/api' });
 
   return app;
 }