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/Framework/Discovery/UnifiedDiscoveryServiceTest.php

@@ -12,7 +12,7 @@ use App\Framework\DateTime\SystemClock;
 use App\Framework\Discovery\Results\DiscoveryRegistry;
 use App\Framework\Discovery\UnifiedDiscoveryService;
 use App\Framework\Discovery\ValueObjects\DiscoveryConfiguration;
-use App\Framework\Reflection\CachedReflectionProvider;
+use App\Framework\ReflectionLegacy\CachedReflectionProvider;
 use App\Framework\Serializer\Php\PhpSerializer;
 use App\Framework\Serializer\Php\PhpSerializerConfig;