uodate create/detail - no upload file

lib/features/showrooms/domain/repositories/design_request_repository.dart

@@ -23,4 +23,24 @@ abstract class DesignRequestRepository {
   ///
   /// Returns full design request detail with files_list.
   Future<DesignRequest> getDesignRequestDetail(String name);
+
+  /// Create a new design request
+  ///
+  /// Returns created request ID (name).
+  Future<String> createDesignRequest({
+    required String subject,
+    required String area,
+    required String region,
+    required String desiredStyle,
+    String? estimatedBudget,
+    required String detailedRequirements,
+    required String dateline,
+  });
+
+  /// Upload file attachment for a design request
+  Future<void> uploadDesignRequestFile({
+    required String requestId,
+    required String filePath,
+    required String fileName,
+  });
 }