🐛 fix(data-grid): 保留独立窗口完整结果快照

- 数据变更回传不再受界面隐藏列过滤
- 同步编辑与删除后的完整结果行数据
- 补充独立窗口隐藏列快照回归测试

frontend/src/components/DataGrid.ddl.test.tsx

@@ -796,6 +796,16 @@ describe('DataGrid commit change set', () => {
     expect(dataGridSource).toContain('data_grid.message.locator_column_value_empty');
   });
 
+  it('keeps hidden result columns in detached-window data snapshots', () => {
+    const dataGridSource = readFileSync(new URL('./DataGrid.tsx', import.meta.url), 'utf8');
+    expect(dataGridSource).toContain(
+      'pickDataGridOutputRows(currentRows, dataChangeOutputColumnNames)',
+    );
+    expect(dataGridSource).not.toContain(
+      'pickDataGridOutputRows(currentRows, displayOutputColumnNames)',
+    );
+  });
+
   it('keeps DataGrid column quick-find warning messages localized', () => {
     const dataGridSource = readFileSync(new URL('./DataGrid.tsx', import.meta.url), 'utf8');
 

frontend/src/components/DataGrid.tsx

@@ -298,6 +298,7 @@ const DataGrid: React.FC<DataGridProps> = ({
     initialViewMode,
     initialViewModeRequestId,
     onDataViewActivate,
+    onDataChange,
 }) => {
   const connections = useStore(state => state.connections);
   const addTab = useStore(state => state.addTab);
@@ -525,6 +526,10 @@ const DataGrid: React.FC<DataGridProps> = ({
       ),
       [displayColumnNames, allOrderedColumnNames, visibleColumnNames]
   );
+  const dataChangeOutputColumnNames = useMemo(
+      () => resolveDataGridOutputColumnNames(columnNames, GONAVI_ROW_KEY),
+      [columnNames],
+  );
 
   // Handle Dragging
   const sensors = useSensors(
@@ -2069,6 +2074,21 @@ const DataGrid: React.FC<DataGridProps> = ({
       });
   }, [displayData, modifiedRows, deletedRowKeys]);
   mergedDisplayDataRef.current = mergedDisplayData;
+  const lastReportedDataFingerprintRef = useRef('');
+  useEffect(() => {
+      if (!onDataChange) return;
+      const currentRows = mergedDisplayData.filter((row) => {
+          const rowKey = row?.[GONAVI_ROW_KEY];
+          return rowKey === undefined || !deletedRowKeys.has(rowKeyStr(rowKey));
+      });
+      // A hidden column is still part of the result snapshot. Only presentation
+      // uses displayOutputColumnNames; detach/attach state must keep full rows.
+      const outputRows = pickDataGridOutputRows(currentRows, dataChangeOutputColumnNames);
+      const fingerprint = JSON.stringify(outputRows);
+      if (fingerprint === lastReportedDataFingerprintRef.current) return;
+      lastReportedDataFingerprintRef.current = fingerprint;
+      onDataChange(outputRows);
+  }, [dataChangeOutputColumnNames, deletedRowKeys, mergedDisplayData, onDataChange, rowKeyStr]);
 
   const dataSourceContextKey = useMemo(
       () => `${connectionId || ''}\u0001${dbName || ''}\u0001${tableName || ''}`,

frontend/src/components/DataGridCore.tsx

@@ -1359,6 +1359,7 @@ interface DataGridProps {
     initialViewMode?: GridViewMode;
     initialViewModeRequestId?: string;
     onDataViewActivate?: () => void;
+    onDataChange?: (rows: any[]) => void;
 }
 
 type GridFilterCondition = FilterCondition & {