feat(reportmanage): 报表维度扩展 — 多维度报表查询

- 新增 IReportDimensionAppService + ReportDimensionAppServiceImpl
- 新增 ReportDimensionController (GET /query)
- 支持按状态/DRG/诊断维度统计
- 前端 ReportDimension.vue 维度切换+明细表格

healthlink-his-ui/src/api/reportmanage/dimension.js

@@ -0,0 +1,5 @@
+import request from '@/utils/request'
+
+export function getReportByDimension(params) {
+  return request({ url: '/report-manage/report-dimension/query', method: 'get', params })
+}