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/simple-cache-test.php

@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+echo "🧪 Simple Cache Test\n";
+echo "==================\n\n";
+
+use App\Framework\Cache\CacheInitializer;
+use App\Framework\Cache\CacheItem;
+use App\Framework\Cache\CacheKey;
+use App\Framework\Core\PathProvider;
+use App\Framework\Core\ValueObjects\Duration;
+use App\Framework\DateTime\SystemClock;
+use App\Framework\DI\DefaultContainer;
+use App\Framework\Performance\EnhancedPerformanceCollector;
+
+try {
+    // Setup
+    $container = new DefaultContainer();
+    $performanceCollector = new EnhancedPerformanceCollector();
+    $pathProvider = new PathProvider(__DIR__ . '/../..');
+    $clock = new SystemClock();
+
+    $container->instance(PathProvider::class, $pathProvider);
+    $container->instance(EnhancedPerformanceCollector::class, $performanceCollector);
+    $container->instance(SystemClock::class, $clock);
+
+    echo "1. Initializing cache...\n";
+    $cacheInitializer = new CacheInitializer($performanceCollector, $container);
+    $cache = $cacheInitializer();
+
+    echo "   Cache class: " . get_class($cache) . "\n";
+
+    // Test basic cache operations
+    echo "\n2. Testing basic cache operations...\n";
+    $testKey = CacheKey::fromString('test_simple');
+    $testData = ['hello' => 'world', 'time' => time()];
+
+    $cacheItem = CacheItem::forSetting(
+        key: $testKey,
+        value: $testData,
+        ttl: Duration::fromMinutes(5)
+    );
+
+    echo "   Writing to cache...\n";
+    $writeResult = $cache->set($cacheItem);
+    echo "   Write result: " . ($writeResult ? 'SUCCESS' : 'FAILED') . "\n";
+
+    echo "   Reading from cache...\n";
+    $readResult = $cache->get($testKey);
+    echo "   Read result class: " . get_class($readResult) . "\n";
+
+    if ($readResult->has($testKey)) {
+        $cachedItem = $readResult->get($testKey);
+        echo "   Cache hit: " . ($cachedItem->isHit ? 'YES' : 'NO') . "\n";
+        echo "   Cached value: " . json_encode($cachedItem->value) . "\n";
+    } else {
+        echo "   ❌ Cache miss - key not found\n";
+    }
+
+    echo "\n✅ Test completed successfully!\n";
+
+} catch (\Throwable $e) {
+    echo "\n❌ Error: " . $e->getMessage() . "\n";
+    echo "File: " . $e->getFile() . ":" . $e->getLine() . "\n";
+    echo "Stack trace:\n" . $e->getTraceAsString() . "\n";
+}