Umbau custom blocks

src/ApiKernel.php

@@ -3005,6 +3005,9 @@ class ApiKernel
                 case 'account.fonts.list':
                     $this->handleAccountFontsList();
                     break;
+                case 'blocks_custom.list':
+                    $this->handleBlocksCustomList();
+                    break;
                 case 'debug.logs.list':
                     $this->handleDebugLogsList();
                     break;
@@ -3090,6 +3093,24 @@ class ApiKernel
         }
     }
 
+    private function handleBlocksCustomList(): void
+    {
+        $this->requireAuth();
+        $baseDir = realpath(__DIR__ . '/../public/assets/js/bridge/blocks-custom/elements');
+        if (!$baseDir || !is_dir($baseDir)) {
+            $this->respond(['ok' => true, 'files' => []]);
+            return;
+        }
+        $files = glob($baseDir . '/*.js') ?: [];
+        $out = [];
+        foreach ($files as $file) {
+            $name = basename($file);
+            if ($name && $name[0] !== '.') $out[] = $name;
+        }
+        sort($out, SORT_NATURAL | SORT_FLAG_CASE);
+        $this->respond(['ok' => true, 'files' => $out]);
+    }
+
     private function lookupTableName(string $key, string $default): string
     {
         $tables = $this->conf['tables'] ?? [];