feat(database): 迁移统计数据查询到ClickHouse

- 添加ClickHouse数据源配置和相关依赖
- 实现ClickHouse统计查询服务和MySQL兜底方案
- 新增扫码统计、订单统计等数据查询接口
- 重构分销员数据统计逻辑，整合MySQL和ClickHouse数据源
- 更新应用配置文件以支持ClickHouse启用开关
- 修改分布式任务统计以支持跨库查询场景

src/main/resources/mapper/TaskMapper.xml

@@ -151,4 +151,26 @@
         order by create_time desc
         limit 1
     </select>
+
+    <!-- 根据 face_id 列表统计已完成任务的用户数 -->
+    <select id="countCompletedTaskMembersByFaceIds" resultType="java.lang.Integer">
+        SELECT COUNT(DISTINCT member_id) AS count
+        FROM task
+        WHERE status = 1
+          AND face_id IN
+        <foreach collection="faceIds" item="faceId" open="(" separator="," close=")">
+            #{faceId}
+        </foreach>
+    </select>
+
+    <!-- 根据 face_id 列表统计已完成任务数 -->
+    <select id="countCompletedTasksByFaceIds" resultType="java.lang.Integer">
+        SELECT COUNT(1) AS count
+        FROM task
+        WHERE status = 1
+          AND face_id IN
+        <foreach collection="faceIds" item="faceId" open="(" separator="," close=")">
+            #{faceId}
+        </foreach>
+    </select>
 </mapper>