feat(dto): 添加位置信息字段支持

- 在 ZTSourceMessage DTO 中新增 posJson 字段
- 更新数据库插入语句以支持 posJson 字段存储
- 调整日志输出内容，突出关键业务标识
- 在数据服务层增加对 posJson 的处理逻辑

src/main/resources/mapper/SourceMapper.xml

@@ -6,8 +6,8 @@
         values (#{id}, #{scenicId}, #{deviceId}, #{url}, #{videoUrl}, #{type}, #{faceSampleId}, #{posJson}, #{createTime})
     </insert>
     <insert id="addFromZTSource">
-        insert into source(id, scenic_id, device_id, url, `type`, face_sample_id, create_time)
-        values (#{id}, #{scenicId}, #{deviceId}, #{url}, #{type}, #{faceSampleId}, #{createTime})
+        insert into source(id, scenic_id, device_id, url, `type`, face_sample_id, pos_json, create_time)
+        values (#{id}, #{scenicId}, #{deviceId}, #{url}, #{type}, #{faceSampleId}, #{posJson}, #{createTime})
     </insert>
     <insert id="addRelation">
         replace member_source(scenic_id, face_id, member_id, source_id, is_buy, type, order_id<if test="isFree">, is_free</if>)