feat: implement comprehensive startup system and fix authentication

Major improvements:
- Created startup orchestration system with health monitoring and graceful shutdown
- Fixed user registration and login with simplified authentication flow
- Rebuilt authentication forms from scratch with direct API integration
- Implemented comprehensive debugging and error handling
- Added Redis fallback functionality for disabled environments
- Fixed CORS configuration for cross-origin frontend requests
- Simplified password validation to 6+ characters (removed complexity requirements)
- Added toast notifications at app level for better UX feedback
- Created comprehensive startup/shutdown scripts with OODA methodology
- Fixed database validation and connection issues
- Implemented TokenService memory fallback when Redis is disabled

Technical details:
- New SimpleLoginForm.tsx and SimpleRegisterForm.tsx components
- Enhanced CORS middleware with additional allowed origins
- Simplified auth validators and removed strict password requirements
- Added extensive logging and diagnostic capabilities
- Fixed authentication middleware token validation
- Implemented graceful Redis error handling throughout the stack
- Created modular startup system with configurable health checks

🤖 Generated with [Claude Code](https://claude.ai/code)

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

src/routes/api.js

@@ -81,7 +81,6 @@ authRoutes.post('/register',
     sanitizeInput(['email', 'username']),
     validateAuthRequest(registerPlayerSchema),
     validateRegistrationUniqueness(),
-    passwordStrengthValidator('password'),
     authController.register
 );
 
@@ -175,6 +174,14 @@ authRoutes.get('/security-status',
     authController.getSecurityStatus
 );
 
+// Development and diagnostic endpoints (only available in development)
+if (process.env.NODE_ENV === 'development') {
+    authRoutes.get('/debug/registration-test',
+        rateLimiter({ maxRequests: 10, windowMinutes: 5, action: 'diagnostic' }),
+        authController.registrationDiagnostic
+    );
+}
+
 // Mount authentication routes
 router.use('/auth', authRoutes);