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/Framework/DateTime/FrozenClockTest.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Framework\DateTime;
 
 use App\Framework\DateTime\FrozenClock;