✨ feat(elasticsearch): 补齐新建连接入口

- 前端连接弹窗新增 Elasticsearch 入口、默认端口、URI 示例和默认索引配置

- 补齐 Elasticsearch 图标、数据源能力、SQL dialect 和只读查询策略

- 后端驱动管理注册 Elasticsearch 版本、模块路径、构建标签和默认安装入口

- 增加连接展示、能力识别和驱动定义测试覆盖

frontend/src/components/DatabaseIcons.test.tsx

@@ -10,6 +10,12 @@ describe('DatabaseIcons', () => {
     expect(getDbIconLabel('iris')).toBe('InterSystems IRIS');
   });
 
+  it('includes Elasticsearch in the selectable database icons', () => {
+    expect(DB_ICON_TYPES).toContain('elasticsearch');
+    expect(getDbIconLabel('elasticsearch')).toBe('Elasticsearch');
+    expect(renderToStaticMarkup(<>{getDbIcon('elasticsearch', undefined, 22)}</>)).toContain('ES');
+  });
+
   it('wraps database icons in a consistent frame for sidebar sizing', () => {
     const mysqlMarkup = renderToStaticMarkup(<>{getDbIcon('mysql', undefined, 22)}</>);
     const jvmMarkup = renderToStaticMarkup(<>{getDbIcon('jvm', undefined, 22)}</>);