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

backups/docs-backup-20250731125004/Application/Controller.md

@@ -0,0 +1,13 @@
+# Controller
+
+```PHP
+
+final readonly class Controller
+{
+    public function __invoke(): ActionResult
+    {
+        new ViewResult();
+    }
+}
+
+````