fix(#SQL-UNION): AdviceManageAppMapper UNION 查询列顺序不一致导致类型不匹配

根因：
- 第一分支（用药医嘱）的列顺序为 start_time, therapyEnum, sort_number
- 第二/三分支（设备/服务医嘱）的列顺序为 therapyEnum, sort_number, start_time
- UNION 时 PostgreSQL 校验第 30 位列发现 timestamp vs integer 类型冲突

修复：
- 将第一分支的 start_time 移到 therapyEnum 和 sort_number 之后
- 三个分支列顺序现在完全对齐

报错：
  UNION types timestamp with time zone and integer cannot be matched

openhis-server-new/openhis-application/src/main/resources/mapper/regdoctorstation/AdviceManageAppMapper.xml

@@ -214,9 +214,9 @@
         T1.dispense_per_duration AS dispense_per_duration,
         T2.part_percent AS part_percent,
         ccd.name AS condition_definition_name,
-        T1.effective_dose_start AS start_time,
         T1.therapy_enum AS therapyEnum,
         T1.sort_number AS sort_number,
+        T1.effective_dose_start AS start_time,
         T1.based_on_id AS based_on_id,
         T1.medication_id AS advice_definition_id,
         T1.effective_dose_end AS stop_time,
@@ -275,7 +275,7 @@
         T1.req_authored_time AS start_time,
         T1.based_on_id AS based_on_id,
         T1.device_def_id AS advice_definition_id,
-        NULL AS stop_time,
+        NULL::timestamp AS stop_time,
         '' AS stop_user_name
         FROM wor_device_request AS T1
         LEFT JOIN adm_device_definition AS T2 ON T2.ID = T1.device_def_id