feat: add dynamic nursing news/information management

- Backend: create RlzNursingArticle CRUD (entity, mapper, service, controller)
- Backend: replace hardcoded data in getAppIndexInfo with DB query
- Admin UI: add nursing article management page under 系统管理
- Android: fetch nursing info from API instead of hardcoded data
- SQL: create rlz_nursing_article table with menu and permissions

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

rlz-ui/src/api/system/nursing.js

@@ -0,0 +1,44 @@
+import request from '@/utils/request'
+
+// 查询护理资讯列表
+export function listNursing(query) {
+  return request({
+    url: '/system/nursing/list',
+    method: 'get',
+    params: query
+  })
+}
+
+// 查询护理资讯详细
+export function getNursing(id) {
+  return request({
+    url: '/system/nursing/' + id,
+    method: 'get'
+  })
+}
+
+// 新增护理资讯
+export function addNursing(data) {
+  return request({
+    url: '/system/nursing',
+    method: 'post',
+    data: data
+  })
+}
+
+// 修改护理资讯
+export function updateNursing(data) {
+  return request({
+    url: '/system/nursing',
+    method: 'put',
+    data: data
+  })
+}
+
+// 删除护理资讯
+export function delNursing(id) {
+  return request({
+    url: '/system/nursing/' + id,
+    method: 'delete'
+  })
+}