feat: 合并 admin/manager 重复页 + 公示意向 + 劳务签署

页合并 (admin/manager 共用, route.path 角色感知):
- expert: Experts.vue + ExpertNew.vue (list/new/edit/view 一套)
- sponsor-orgs: SponsorOrgs.vue
- sponsor-people: SponsorPeople.vue + SponsorPersonNew.vue + SponsorPersonDetail.vue
- executor-orgs: ExecutorOrgs.vue
- executor-people: ExecutorPeople.vue + ExecutorPersonNew.vue + ExecutorPersonDetail.vue
- 给 SponsorPeople / ExecutorPeople op 列补上 查看/编辑 按钮 (潜在 bug 修复)
- 详情弹窗统一用 el-descriptions 风格 (替代 admin 旧版 ElMessageBox.alert)

后端:
- BizSignController + BizSignServiceImpl + PdfService (劳务签署 PDF 流程)
- BizPublicityIntentController (公示意向: 支持/执行)
- BizPublicitySupportIntent / BizPublicityExecutionIntent ExportVo
- BizMeetingAttendee 字段合并 (bank_region 替代 bankProvince/bankCity)
- BizExpert 字段合并 (id_card_attachments CSV, bank_region)
- Excel 导入模板精简 (开户行 1 列)

前端:
- doctor/SignFill + SignContract + SignSuccess (劳务签署 3 页流程)
- ImportResultDialog 通用组件
- IdCardUploader 重构 (单 v-model:idCardAttachments, CSV 格式)
- AreaCascader 调整
- Login.vue + AdminLayout.vue + PortalShell.vue + Home.vue 适配

DB: 字段合并 (id_card_front/back → id_card_attachments, bank_province/city → bank_region)

ry-vue3/src/layout/AdminLayout.vue

@@ -1,6 +1,10 @@
 <template>
   <el-container class="admin-layout">
-    <el-aside width="220px" class="aside">
+    <el-aside
+      v-if="!route.meta?.hideMenu"
+      width="220px"
+      class="aside"
+    >
       <div class="aside-logo">
         <div class="logo-text">{{ roleLabel }}</div>
         <div class="logo-sub">BAHIM 工作台</div>
@@ -27,7 +31,7 @@
       </el-menu>
     </el-aside>
     <el-container>
-      <el-header class="topbar">
+      <el-header v-if="!route.meta?.hideMenu" class="topbar">
         <div class="topbar-left">
           <span class="page-title">{{ route.meta?.title || '工作台' }}</span>
         </div>
@@ -43,7 +47,7 @@
           </el-dropdown>
         </div>
       </el-header>
-      <el-main class="main">
+      <el-main class="main" :class="{ 'main-full': route.meta?.hideMenu }">
         <router-view />
       </el-main>
     </el-container>
@@ -184,4 +188,6 @@ const onCommand = (cmd) => { if (cmd === 'logout') logout() }
 .topbar-right { display: flex; align-items: center; gap: 12px; }
 .user-name { cursor: pointer; display: inline-flex; align-items: center; gap: 4px; }
 .main { background: #f5f7fa; padding: 16px; }
+/* 手机页面 (hideMenu): 白底 + 0 padding, 让 form 直接撑满 */
+.main-full { background: #fff; padding: 0; }
 </style>