implement backend skeleton with MongoDB and Claude AI integration

- Add controllers (Auth, Chat, Event) with placeholder implementations
- Add services (Auth, Chat, Event) with business logic interfaces
- Add repositories with MongoDB/Mongoose models (User, Event, Chat)
- Add middleware for JWT authentication
- Add Claude AI adapter implementing AIProvider interface
- Add utility modules for JWT and password handling
- Add shared types and DTOs for User, CalendarEvent, ChatMessage
- Configure routes with proper endpoint structure
- Update app.ts with dependency injection setup
- Add required dependencies: mongoose, bcrypt, jsonwebtoken, @anthropic-ai/sdk

apps/server/src/routes/index.ts

@@ -0,0 +1,25 @@
+import { Router } from 'express';
+import { createAuthRoutes } from './auth.routes';
+import { createChatRoutes } from './chat.routes';
+import { createEventRoutes } from './event.routes';
+import { AuthController, ChatController, EventController } from '../controllers';
+
+export interface Controllers {
+  authController: AuthController;
+  chatController: ChatController;
+  eventController: EventController;
+}
+
+export function createRoutes(controllers: Controllers): Router {
+  const router = Router();
+
+  router.use('/auth', createAuthRoutes(controllers.authController));
+  router.use('/chat', createChatRoutes(controllers.chatController));
+  router.use('/events', createEventRoutes(controllers.eventController));
+
+  return router;
+}
+
+export * from './auth.routes';
+export * from './chat.routes';
+export * from './event.routes';