Refactor: Doc change parser (#14327)

### What problem does this PR solve?

Before migration
Web API: POST /v1/document/change_parser
HTTP API: PATCH /api/v1/datasets/<dataset_id>/documents

After consolidation, Restful API
PATCH /api/v1/datasets/<dataset_id>/documents

### Type of change

- [x] Refactoring

web/src/interfaces/request/document.ts

@@ -11,6 +11,18 @@ export interface IChangeParserConfigRequestBody {
   image_table_context_window?: number;
   image_context_size?: number;
   table_context_size?: number;
+  // Metadata fields
+  metadata?: Array<{
+    key?: string;
+    description?: string;
+    enum?: string[];
+  }>;
+  built_in_metadata?: Array<{
+    key?: string;
+    description?: string;
+    enum?: string[];
+  }>;
+  enable_metadata?: boolean;
 }
 
 export interface IChangeParserRequestBody {