Enable Discovery debug logging for production troubleshooting

- Add DISCOVERY_LOG_LEVEL=debug
- Add DISCOVERY_SHOW_PROGRESS=true
- Temporary changes for debugging InitializerProcessor fixes on production

tests/debug/DebugInitializer.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Debug;
+
+use App\Framework\DI\Container;
+use App\Framework\DI\Initializer;
+
+final readonly class DebugInitializer
+{
+    public function __construct(
+        private Container $container
+    ) {
+    }
+
+    #[Initializer]
+    public function debugTest(): void
+    {
+        echo "🎉 DEBUG: DebugInitializer wurde ausgeführt!\n";
+        echo "🎯 DEBUG: Container-Typ: " . get_class($this->container) . "\n";
+
+        // Log to a file to prove execution
+        file_put_contents(
+            __DIR__ . '/initializer-execution.log',
+            date('Y-m-d H:i:s') . " - DebugInitializer executed\n",
+            FILE_APPEND | LOCK_EX
+        );
+    }
+
+    #[Initializer]
+    public function debugService(): \stdClass
+    {
+        echo "🚀 DEBUG: Service-Initializer wurde aufgerufen!\n";
+
+        // Log to a file to prove execution
+        file_put_contents(
+            __DIR__ . '/initializer-execution.log',
+            date('Y-m-d H:i:s') . " - Service-Initializer executed\n",
+            FILE_APPEND | LOCK_EX
+        );
+
+        $service = new \stdClass();
+        $service->debug = 'Created by DebugInitializer';
+
+        return $service;
+    }
+}