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

src/Framework/Filesystem/FileScannerInterface.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Framework\Filesystem;
+
+use App\Framework\Core\ValueObjects\Timestamp;
+use App\Framework\Filesystem\ValueObjects\FileCollection;
+use App\Framework\Filesystem\ValueObjects\FilePattern;
+use Generator;
+
+/**
+ * Interface for all FileScanner implementations
+ * Generic filesystem scanning interface with type-safe Value Objects
+ */
+interface FileScannerInterface
+{
+    /**
+     * Find all files matching a pattern in a directory
+     */
+    public function findFiles(FilePath $directoryPath, ?FilePattern $pattern = null): FileCollection;
+
+    /**
+     * Get the latest modification time of all files matching pattern
+     */
+    public function getLatestModificationTime(FilePath $directoryPath, ?FilePattern $pattern = null): Timestamp;
+
+    /**
+     * Find files that have been modified since a given timestamp
+     */
+    public function findFilesModifiedSince(FilePath $directoryPath, Timestamp $since, ?FilePattern $pattern = null): FileCollection;
+
+    /**
+     * Stream files one by one for memory-efficient processing
+     * @return Generator<File>
+     */
+    public function streamFiles(FilePath $directoryPath, ?FilePattern $pattern = null): Generator;
+
+    /**
+     * Stream files in batches for balanced memory/performance
+     * @return Generator<FileCollection>
+     */
+    public function streamFilesInBatches(FilePath $directoryPath, ?FilePattern $pattern = null, int $batchSize = 100): Generator;
+}