feat: 重构数据空间与 SQL 工作台

- 提供连接管理、逻辑表编排和轻量 SQL 工作台

- 增加 SQL 补全、执行分析、结果分栏与导出交互

- 统一数据空间导航、图标和编辑器体验

easyflow-ui-admin/app/src/views/dataspace/dataspace-sql.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from 'vitest';
+
+import { formatCalciteSql } from './dataspace-sql';
+
+describe('formatCalciteSql', () => {
+  it('formats common Calcite query clauses', () => {
+    expect(
+      formatCalciteSql(
+        'select o.id, c.name from MYSQL_1.MAIN.outlet o join PG_2.PUBLIC.customer c on c.id=o.id where o.name is not null order by o.id desc limit 100',
+      ),
+    ).toBe(
+      'SELECT o.id, c.name\nFROM MYSQL_1.MAIN.outlet o\nJOIN PG_2.PUBLIC.customer c ON c.id=o.id\nWHERE o.name is not null\nORDER BY o.id DESC\nLIMIT 100;\n',
+    );
+  });
+
+  it('preserves quoted keyword literals', () => {
+    expect(formatCalciteSql("select 'from where' as label from demo")).toBe(
+      "SELECT 'from where' AS label\nFROM demo;\n",
+    );
+  });
+});