✨ feat(data-grid): 优化字段跳转列匹配与回车定位

- 提取字段跳转目标解析逻辑，优先精确匹配再回退模糊匹配
- 旧版跳转列保留补全下拉，选中或回车即可定位
- 移除旧版多余跳转按钮，统一为输入即补全的交互
- 补充 DataGrid 与 dataGridFind 定向回归覆盖
- Refs #509

frontend/src/utils/dataGridFind.test.ts

@@ -6,6 +6,7 @@ import {
   findDataGridTextRanges,
   hasDataGridFindRenderVersionChanged,
   normalizeDataGridFindQuery,
+  resolveDataGridColumnQuickFindTarget,
   resolveDataGridFindNavigationIndex,
   summarizeDataGridFindMatches,
 } from './dataGridFind';
@@ -89,6 +90,15 @@ describe('dataGridFind', () => {
     expect(resolveDataGridFindNavigationIndex(0, 0, 'next')).toBe(-1);
   });
 
+  it('prefers an exact quick-find column match over earlier fuzzy matches', () => {
+    const columnNames = ['user_id', 'username', 'created_at'];
+
+    expect(resolveDataGridColumnQuickFindTarget(columnNames, 'username')).toBe('username');
+    expect(resolveDataGridColumnQuickFindTarget(columnNames, 'user')).toBe('user_id');
+    expect(resolveDataGridColumnQuickFindTarget(columnNames, '  ')).toBe('');
+    expect(resolveDataGridColumnQuickFindTarget(columnNames, 'missing')).toBe('');
+  });
+
   it('tracks render version changes without exposing metadata as row data', () => {
     const rows = [{ id: 1, name: 'Alpha' }];
 

frontend/src/utils/dataGridFind.ts

@@ -143,3 +143,20 @@ export const resolveDataGridFindNavigationIndex = (
   }
   return currentIndex < 0 || currentIndex >= matchCount - 1 ? 0 : currentIndex + 1;
 };
+
+export const resolveDataGridColumnQuickFindTarget = (
+  columnNames: string[],
+  query: string,
+): string => {
+  const normalizedQuery = normalizeDataGridFindQuery(query);
+  if (!normalizedQuery) return '';
+
+  const exactMatch = columnNames.find((columnName) => (
+    normalizeDataGridFindQuery(columnName) === normalizedQuery
+  ));
+  if (exactMatch) return exactMatch;
+
+  return columnNames.find((columnName) => (
+    normalizeDataGridFindQuery(columnName).includes(normalizedQuery)
+  )) || '';
+};