v1.2.0: foto produk di kasir (grid + keranjang) + fix MIME jpg->jpeg

lib/screens/produk_screen.dart

@@ -40,12 +40,14 @@ Future<String?> pickAndUploadProductImage(BuildContext context,
       final raw = picked.name.substring(dot + 1).toLowerCase();
       if (['jpg', 'jpeg', 'png', 'webp'].contains(raw)) ext = raw;
     }
+    // MIME resmi: jpg -> image/jpeg (bukan image/jpg, ditolak server 415)
+    final mime = ext == 'jpg' ? 'image/jpeg' : 'image/$ext';
     final path =
         'prod-${DateTime.now().millisecondsSinceEpoch}.$ext';
     await Supabase.instance.client.storage
         .from(kProductImageBucket)
         .uploadBinary(path, bytes,
-            fileOptions: FileOptions(contentType: 'image/$ext', upsert: true));
+            fileOptions: FileOptions(contentType: mime, upsert: true));
     return path;
   } catch (e) {
     if (context.mounted) {