feat(web): Improve parser_config initialization with spread operator

- Refactor parser_config assignment to use spread operator for better merging
- Preserve existing parser_config values when initializing defaults
- Merge graphrag configuration from record if present
- Ensure default values are applied while maintaining user-provided settings

web/src/views/KnowledgeBase/components/CreateModal.tsx

@@ -211,7 +211,8 @@ const CreateModal = forwardRef<CreateModalRef, CreateModalRefProps>(({
 
     // Process parser_config data, set default values if not present
     const recordAny = record as any;
-    baseValues.parser_config = record.parser_config || {
+    baseValues.parser_config = {
+      ...record.parser_config,
       graphrag: {
         use_graphrag: false,
         scene_name: '',
@@ -219,6 +220,7 @@ const CreateModal = forwardRef<CreateModalRef, CreateModalRefProps>(({
         method: 'general',
         resolution: false,
         community: false,
+        ...(record.parser_config?.graphrag || {})
       }
     };