fix(#575): 预约成功后 booked_num 未实时累加

根因：booked_num 只在签到时累加，预约成功后没有更新。
业务上预约成功就占了号源，booked_num 应立即反映。

修复：
- TicketServiceImpl: 预约成功后 booked_num +1（与 locked_num 同步）
- SchedulePoolMapper: 签到时不再改 booked_num（预约时已加）
- SchedulePoolMapper: refreshPoolStats 统计 booked_num 包含 LOCKED+BOOKED+CHECKED_IN
- SlotStatus: 更新状态流转注释

openhis-server-new/openhis-domain/src/main/java/com/openhis/appointmentmanage/mapper/SchedulePoolMapper.java

@@ -24,7 +24,7 @@ public interface SchedulePoolMapper extends BaseMapper<SchedulePool> {
                     FROM adm_schedule_slot s
                     WHERE s.pool_id = p.id
                       AND s.delete_flag = '0'
-                      AND (s.status = #{bookedStatus} OR s.status = 3)
+                      AND s.status IN (#{bookedStatus}, #{lockedStatus}, 3)
                 ), 0),
                 locked_num = COALESCE((
                     SELECT COUNT(1)
@@ -42,7 +42,7 @@ public interface SchedulePoolMapper extends BaseMapper<SchedulePool> {
                          @Param("lockedStatus") Integer lockedStatus);
 
     /**
-     * 签到时更新号源池统计：锁定数-1，已约数+1
+     * 签到时更新号源池统计：锁定数-1（booked_num 在预约时已累加）
      *
      * @param poolId 号源池ID
      * @return 结果
@@ -50,7 +50,6 @@ public interface SchedulePoolMapper extends BaseMapper<SchedulePool> {
     @Update("""
             UPDATE adm_schedule_pool
             SET locked_num = locked_num - 1,
-                booked_num = booked_num + 1,
                 update_time = NOW()
             WHERE id = #{poolId}
               AND locked_num > 0

openhis-server-new/openhis-domain/src/main/java/com/openhis/clinical/service/impl/TicketServiceImpl.java

@@ -267,7 +267,7 @@ public class TicketServiceImpl extends ServiceImpl<TicketMapper, Ticket> impleme
         if (poolId != null) {
             schedulePoolMapper.update(null,
                 new LambdaUpdateWrapper<SchedulePool>()
-                    .setSql("locked_num = locked_num + 1, version = version + 1")
+                    .setSql("locked_num = locked_num + 1, booked_num = booked_num + 1, version = version + 1")
                     .set(SchedulePool::getUpdateTime, new Date())
                     .eq(SchedulePool::getId, poolId));
         }