fix(Middleware): Disable RateLimitMiddleware temporarily

- Commented out RateLimitMiddleware in MiddlewareManager
- RateLimit system not fully implemented yet (missing Storage, Initializer)
- Added ENV_SETUP.md documentation for .env file structure
- Website was returning HTTP 500 due to missing StorageInterface binding

TODO: Implement complete RateLimit system with Storage interface and DI bindings

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

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

src/Framework/Http/MiddlewareManager.php

@@ -5,7 +5,9 @@ declare(strict_types=1);
 namespace App\Framework\Http;
 
 use App\Framework\Cache\Cache;
+use App\Framework\Cache\CacheKey;
 use App\Framework\Core\ValueObjects\ClassName;
+use App\Framework\Core\ValueObjects\Duration;
 use App\Framework\DI\Container;
 use App\Framework\Discovery\Results\DiscoveryRegistry;
 use App\Framework\Http\Middlewares\DDoSProtectionMiddleware;
@@ -72,7 +74,7 @@ final readonly class MiddlewareManager implements MiddlewareManagerInterface
             \App\Framework\Http\Session\SessionMiddleware::class,
 
             // 5. Security und Rate Limiting
-            RateLimitMiddleware::class,
+            //RateLimitMiddleware::class,
             #\App\Application\Security\Middleware\SecurityEventMiddleware::class,
 
             // 6. Headers und CORS
@@ -248,11 +250,11 @@ final readonly class MiddlewareManager implements MiddlewareManagerInterface
         $className = is_string($middlewareClass) ? $middlewareClass : $middlewareClass::class;
         $className = ltrim($className, '\\');
 
-        $cacheKey = "middleware_priority:{$className}";
+        $cacheKey = CacheKey::fromString("middleware_priority:{$className}");
 
         $cacheItem = $this->cache->remember($cacheKey, function () use ($className) {
             return $this->resolvePriorityFromReflection($className);
-        }, 3600);
+        }, Duration::fromSeconds(3600));
 
         return is_int($cacheItem->value) ? $cacheItem->value : MiddlewarePriority::BUSINESS_LOGIC->value;
     }
@@ -330,7 +332,7 @@ final readonly class MiddlewareManager implements MiddlewareManagerInterface
         $className = is_string($middlewareClass) ? $middlewareClass : $middlewareClass::class;
         $className = ltrim($className, '\\');
 
-        $cacheKey = "middleware_priority_discovery:{$className}";
+        $cacheKey = CacheKey::fromString("middleware_priority_discovery:{$className}");
 
         $cacheItem = $this->cache->remember($cacheKey, function () use ($className) {
             // Use discovery registry to find priority
@@ -350,7 +352,7 @@ final readonly class MiddlewareManager implements MiddlewareManagerInterface
 
             // Default priority
             return MiddlewarePriority::BUSINESS_LOGIC->value;
-        }, 3600);
+        }, Duration::fromSeconds(3600));
 
         return is_int($cacheItem->value) ? $cacheItem->value : MiddlewarePriority::BUSINESS_LOGIC->value;
     }