diff --git a/backend/app/Services/CurriculumService.php b/backend/app/Services/CurriculumService.php
index c80871c..e334aad 100644
--- a/backend/app/Services/CurriculumService.php
+++ b/backend/app/Services/CurriculumService.php
@@ -10,6 +10,15 @@ use App\Core\Database;
  */
 class CurriculumService
 {
+    /**
+     * Stub for backwards compatibility with controllers calling ensureSchema.
+     * Curriculum is now file-based.
+     */
+    public static function ensureSchema(): void
+    {
+        // No-op
+    }
+
     private static string $storagePath = __DIR__ . '/../../storage/curriculum';
     private static string $manifestFile = __DIR__ . '/../../storage/curriculum/manifest.json';
 
diff --git a/test_php_binary.php b/test_php_binary.php
deleted file mode 100644
index 0808c63..0000000
--- a/test_php_binary.php
+++ /dev/null
@@ -1,2 +0,0 @@
-<?php
-echo PHP_BINARY;