feat(health): 健康数据统计 — 透析/化验/预约/体征上报率

- 新增 6 个统计端点: dialysis, lab-reports, appointments,
  vital-signs-report-rate, health-data(综合)
- 透析统计: 类型分布/并发症率/平均超滤/平均时长
- 化验统计: 类型分布/异常项计数/审核状态
- 预约统计: 状态/类型分布/取消率
- 体征上报率: 月度上报率 + 近 7 天趋势
- Web 统计面板增加健康数据中心区块

crates/erp-health/src/module.rs

@@ -482,6 +482,26 @@ impl HealthModule {
                 "/health/admin/statistics/dashboard",
                 axum::routing::get(stats_handler::get_dashboard_stats),
             )
+            .route(
+                "/health/admin/statistics/dialysis",
+                axum::routing::get(stats_handler::get_dialysis_stats),
+            )
+            .route(
+                "/health/admin/statistics/lab-reports",
+                axum::routing::get(stats_handler::get_lab_report_stats),
+            )
+            .route(
+                "/health/admin/statistics/appointments",
+                axum::routing::get(stats_handler::get_appointment_stats),
+            )
+            .route(
+                "/health/admin/statistics/vital-signs-report-rate",
+                axum::routing::get(stats_handler::get_vital_signs_report_rate),
+            )
+            .route(
+                "/health/admin/statistics/health-data",
+                axum::routing::get(stats_handler::get_health_data_stats),
+            )
             // 危急值阈值配置
             .route(
                 "/health/critical-value-thresholds",