Fix asset export to create ZIP file with manifest

app/Http/Controllers/AssetController.php

@@ -9,34 +9,46 @@ use ZipArchive;
 
 class AssetController extends Controller
 {
-    public function export(): \Symfony\Component\HttpFoundation\StreamedResponse
+    public function export()
     {
         $user = auth()->user();
         if (!$user || !$user->roles()->where('name', 'ROLE_ADMIN')->exists()) {
             abort(403, 'Forbidden');
         }
 
-        $storagePublic = storage_path('app/public');
+        try {
+            $storagePublic = storage_path('app/public');
 
-        if (!is_dir($storagePublic)) {
-            mkdir($storagePublic, 0775, true);
+            if (!is_dir($storagePublic)) {
+                mkdir($storagePublic, 0775, true);
+            }
+
+            // Create ZIP in memory
+            $zip = new ZipArchive();
+            $tempFile = tempnam(sys_get_temp_dir(), 'speedbb_');
+
+            if ($zip->open($tempFile, ZipArchive::CREATE | ZipArchive::OVERWRITE) !== true) {
+                return response()->json(['message' => 'Failed to create ZIP'], 500);
+            }
+
+            // Add a manifest file to ensure ZIP is created even if empty
+            $zip->addFromString('MANIFEST.txt', "SpeedBB Assets Export\nExported: " . date('Y-m-d H:i:s') . "\n");
+            $this->addDirectoryToZip($zip, $storagePublic, '');
+            $zip->close();
+
+            if (!file_exists($tempFile)) {
+                return response()->json(['message' => 'ZIP file was not created'], 500);
+            }
+
+            $filename = 'assets-'.date('YmdHis').'.zip';
+
+            return response()->file($tempFile, [
+                'Content-Type' => 'application/zip',
+                'Content-Disposition' => 'attachment; filename="'.$filename.'"',
+            ])->deleteFileAfterSend(true);
+        } catch (\Exception $e) {
+            return response()->json(['message' => 'Export error: '.$e->getMessage()], 500);
         }
-
-        $zip = new ZipArchive();
-        $zipPath = storage_path('exports/assets-'.date('YmdHis').'.zip');
-
-        if (!is_dir(storage_path('exports'))) {
-            mkdir(storage_path('exports'), 0775, true);
-        }
-
-        if ($zip->open($zipPath, ZipArchive::CREATE) !== true) {
-            abort(500, 'Failed to create ZIP archive');
-        }
-
-        $this->addDirectoryToZip($zip, $storagePublic, '');
-        $zip->close();
-
-        return response()->download($zipPath)->deleteFileAfterSend(true);
     }
 
     public function import(Request $request): JsonResponse