fix: Gitea Traefik routing and connection pool optimization

- Remove middleware reference from Gitea Traefik labels (caused routing issues)
- Optimize Gitea connection pool settings (MAX_IDLE_CONNS=30, authentication_timeout=180s)
- Add explicit service reference in Traefik labels
- Fix intermittent 504 timeouts by improving PostgreSQL connection handling

Fixes Gitea unreachability via git.michaelschiemer.de

tests/debug/test-initializer-execution.php

@@ -11,7 +11,7 @@ use App\Framework\Core\PathProvider;
 use App\Framework\DateTime\SystemClock;
 use App\Framework\DI\DefaultContainer;
 use App\Framework\Discovery\DiscoveryServiceBootstrapper;
-use App\Framework\Reflection\CachedReflectionProvider;
+use App\Framework\ReflectionLegacy\CachedReflectionProvider;
 use App\Framework\Serializer\Json\JsonSerializer;
 
 echo "=== Testing Initializer Execution ===\n\n";
@@ -37,7 +37,7 @@ try {
     $container->instance(\App\Framework\Serializer\Serializer::class, $serializer);
     $container->instance(\App\Framework\Cache\Cache::class, $cache);
     $container->instance(\App\Framework\DateTime\Clock::class, $clock);
-    $container->instance(\App\Framework\Reflection\ReflectionProvider::class, new CachedReflectionProvider());
+    $container->instance(\App\Framework\ReflectionLegacy\ReflectionProvider::class, new CachedReflectionProvider());
 
     echo "Current execution context: " . ExecutionContext::detect()->getType()->value . "\n\n";