Add user and event lookup endpoints

[rxmox]

Summary

Implements three new GET endpoints for retrieving user and event information by ID.

Changes

New Endpoints

1. GET /api/users/:userId - Get user by ID

   • Returns user information excluding passwordHash for security
   • Returns 404 if user not found

2. GET /api/events/:eventId - Get event by ID

   • Returns event details with populated participant information
   • Returns 404 if event not found

3. GET /api/users/:userId/events - Get all events a user has joined

   • Returns array of events from user's event history
   • Returns empty array if user has no event history

Files Modified

• src/controllers/user_controller.ts - Added getUserById and getUserEvents functions
• src/routes/user_route.ts - Added routes with proper ordering to avoid conflicts
• src/controllers/event_controller.ts - Added getEventById function
• src/routes/event_routes.ts - Added route for event by ID

Implementation Details

• All endpoints follow existing code patterns and error handling
• Consistent response format: { success: true/false, ... }
• Proper validation and 404 handling for missing resources
• Security: passwordHash excluded from user queries
• Route ordering configured correctly to prevent conflicts

Test Plan

All endpoints have been tested and verified:

Test Results

✅ GET /api/users/:userId - Returns user with all fields (passwordHash excluded)
✅ GET /api/events/:eventId - Returns event with populated participant details
✅ GET /api/users/:userId/events - Returns array of user's events
✅ 404 handling - Returns appropriate errors for non-existent resources
✅ Empty arrays - Correctly handles users with no event history
✅ TypeScript compilation - No build errors

Manual Testing Commands

# Test get user by ID
curl http://localhost:4000/api/users/{userId}

# Test get event by ID
curl http://localhost:4000/api/events/{eventId}

# Test get user's events
curl http://localhost:4000/api/users/{userId}/events