feat(home): 添加处方统计数据功能

- 在 HomeStatisticsDto 中新增今日处方、昨日处方和处方趋势字段
- 实现处方数量查询逻辑，支持按日期和医生过滤
- 计算处方数据的日环比变化率
- 更新前端界面以显示处方统计信息
- 配置处方相关的路由映射
- 修正数据绑定逻辑以正确关联处方统计数据

openhis-server-new/openhis-application/src/main/java/com/openhis/web/dto/HomeStatisticsDto.java

@@ -79,4 +79,19 @@ public class HomeStatisticsDto {
      * 待写病历数量
      */
     private Integer pendingEmr;
-}
+
+    /**
+     * 今日处方数量
+     */
+    private Integer todayPrescriptions;
+
+    /**
+     * 昨日处方数量
+     */
+    private Integer yesterdayPrescriptions;
+
+    /**
+     * 处方相对前日变化百分比
+     */
+    private Double prescriptionTrend;
+}

openhis-server-new/openhis-application/src/main/java/com/openhis/web/service/impl/HomeStatisticsServiceImpl.java

@@ -15,6 +15,8 @@ import com.openhis.common.enums.ParticipantType;
 import com.openhis.web.dto.HomeStatisticsDto;
 import com.openhis.financial.domain.PaymentReconciliation;
 import com.openhis.financial.service.IPaymentReconciliationService;
+import com.openhis.medication.domain.MedicationRequest;
+import com.openhis.medication.service.IMedicationRequestService;
 import com.openhis.common.enums.PaymentStatus;
 import com.openhis.web.service.IHomeStatisticsService;
 import java.math.BigDecimal;
@@ -56,6 +58,9 @@ public class HomeStatisticsServiceImpl implements IHomeStatisticsService {
     @Autowired
     private IPaymentReconciliationService paymentReconciliationService;
 
+    @Autowired
+    private IMedicationRequestService medicationRequestService;
+
     /**
      * 获取首页统计数据
      *
@@ -131,9 +136,49 @@ public class HomeStatisticsServiceImpl implements IHomeStatisticsService {
         statistics.setAppointmentTrend(0.0);
         statistics.setPendingApprovals(0);
 
+
+        // 查询今日处方数量
+        int todayPrescriptions = queryPrescriptionCountByDate(new Date(), practitioner);
+        int yesterdayPrescriptions = queryPrescriptionCountByDate(getYesterday(), practitioner);
+        statistics.setTodayPrescriptions(todayPrescriptions);
+        statistics.setYesterdayPrescriptions(yesterdayPrescriptions);
+        statistics.setPrescriptionTrend(calculateTrend(todayPrescriptions, yesterdayPrescriptions));
+
         return statistics;
     }
     
+    /**
+     * 查询指定日期的处方数量
+     *
+     * @param date 日期
+     * @param practitioner 当前医生（null 则查全部）
+     * @return 处方数量
+     */
+    private int queryPrescriptionCountByDate(Date date, Practitioner practitioner) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(date);
+        cal.set(Calendar.HOUR_OF_DAY, 0);
+        cal.set(Calendar.MINUTE, 0);
+        cal.set(Calendar.SECOND, 0);
+        cal.set(Calendar.MILLISECOND, 0);
+        Date dayStart = cal.getTime();
+
+        cal.add(Calendar.DAY_OF_MONTH, 1);
+        Date dayEnd = cal.getTime();
+
+        LambdaQueryWrapper<MedicationRequest> query = new LambdaQueryWrapper<>();
+        query.ge(MedicationRequest::getCreateTime, dayStart)
+             .lt(MedicationRequest::getCreateTime, dayEnd)
+             .eq(MedicationRequest::getDeleteFlag, "0");
+
+        // 如果是医生角色，只统计自己开的处方
+        if (practitioner != null) {
+            query.eq(MedicationRequest::getPractitionerId, practitioner.getId());
+        }
+
+        return (int) medicationRequestService.count(query);
+    }
+
     /**
      * 查询指定日期的收款总额（状态为支付成功且未全部退款）
      *