Backend Complete: Interface Refactoring & Service Container Enhancements

Repository Interface Optimization:
- Created IBaseRepository.ts and IPaginatedRepository.ts
- Refactored all 7 repository interfaces to extend base interfaces
- Eliminated ~200 lines of redundant code (70% reduction)
- Improved type safety and maintainability

 Dependency Injection Improvements:
- Added EmailService and GameTokenService to DIContainer
- Updated CreateUserCommandHandler constructor for DI
- Updated RequestPasswordResetCommandHandler constructor for DI
- Enhanced testability and service consistency

 Environment Configuration:
- Created comprehensive .env.example with 40+ variables
- Organized into 12 logical sections (Database, Security, Email, etc.)
- Added security guidelines and best practices
- Documented all backend environment requirements

 Documentation:
- Added comprehensive codebase review
- Created refactoring summary report
- Added frontend implementation guide

Impact: Improved code quality, reduced maintenance overhead, enhanced developer experience

SerpentRace_Backend/scripts/test-redis.ps1

@@ -0,0 +1,21 @@
+# PowerShell script to start Redis and run tests
+Write-Host "Starting Redis with Docker Compose..." -ForegroundColor Green
+docker-compose up -d redis
+
+# Wait for Redis to be ready
+Write-Host "Waiting for Redis to be ready..." -ForegroundColor Yellow
+do {
+    Write-Host "Checking Redis connection..." -ForegroundColor Gray
+    $result = docker-compose exec redis redis-cli ping 2>$null
+    if ($result -ne "PONG") {
+        Start-Sleep -Seconds 2
+    }
+} while ($result -ne "PONG")
+
+Write-Host "Redis is ready!" -ForegroundColor Green
+
+# Run Redis tests
+Write-Host "Running Redis tests..." -ForegroundColor Cyan
+npm test -- --testNamePattern="RedisService"
+
+Write-Host "Done!" -ForegroundColor Green