style: 重塑政务风格 + 操作列统一 el-link + 表格紧凑化

业务背景
- ry-vue3 为政务/卫健委风合规管理系统 (医疗机构合规系统), 不要可爱配色、不要插画
- 品牌色: 主色 #15803D (低调深绿) + 次色 #0E7490 (青蓝), 不要蓝色系主色

变更概要
1. 全局地基
   - theme.scss: Element Plus 主色改为 #15803D, slate 9 档, 联动组件库
   - main.scss: 字体/页面骨架/筛选栏/表格/控件/滚动条 全套样式
   - AdminLayout.vue: 政务顶栏 + 浅色侧栏
   - Workbench.vue: 替换原绿底大字卡为 KPI 白底色条 + 快捷入口 + 进度条

2. 表格操作列改造
   - el-button link 全面替换为 el-link (:underline="false" + type="primary/danger")
   - 36 文件 132 处替换, 操作列外加 .table-actions 容器 (内含分隔线)
   - 修复 el-link 不支持的属性 (size="small"/text/loading)

3. 筛选栏
   - 弹性布局 + gap 14px 16px + align-items: flex-start + min-height 32px
   - 删除所有 scoped .filter-form 覆盖 (28 处) 让全局样式生效
   - 控件宽度 180px 统一, 标签 32px 居中, 折行不紧贴

4. 表格紧凑化
   - cell-padding 10px → 6px, 表头高度 36px
   - 行高 ~46px → ~36px, 字号 13px

5. 每页默认 20 条
   - 21 文件 pageSize: 10 → 20

6. meetings 操作列折叠
   - 11 操作 → 外置 3 个主操作 + 1 个"更多" el-dropdown (8 个次操作)
   - width 500px → 260px
   - 配 .op-dropdown / .op-caret 样式 (hover 旋转)
   - 新增 onMoreAction dispatch 函数 (复用原 handler)

7. 操作列文字防拆行
   - .table-actions flex-wrap: nowrap + white-space: nowrap
   - el-link padding 0 8px → 0 6px, flex-shrink: 0

8. 环境配置
   - .env.development: 直连远端 https://risingdoctor.com/hg-api (绕过 vite proxy 卡顿)
   - vite.config.js: proxy fallback 保留

ry-vue3/src/views/meetings/MeetingDetail.vue

@@ -41,7 +41,7 @@
               <div class="tag-list">
                 <el-tag v-for="u in supervisors" :key="u.sponsorOrgId" type="info" size="small">{{ u.orgName }}</el-tag>
                 <span v-if="!supervisors.length" class="text-muted">- 未分配 -</span>
-                <el-button v-if="isManager && !isReadonly" link type="primary" size="small" @click="openAssignDialog('supervisor')">分配</el-button>
+                <el-link :underline="false" v-if="isManager && !isReadonly" type="primary" @click="openAssignDialog('supervisor')">分配</el-link>
               </div>
             </div>
             <div class="info-row info-row-full">
@@ -49,7 +49,7 @@
               <div class="tag-list">
                 <el-tag v-for="u in executors" :key="u.executorOrgId" type="success" size="small">{{ u.orgName }}</el-tag>
                 <span v-if="!executors.length" class="text-muted">- 未分配 -</span>
-                <el-button v-if="isManager && !isReadonly" link type="primary" size="small" @click="openAssignDialog('executor')">分配</el-button>
+                <el-link :underline="false" v-if="isManager && !isReadonly" type="primary" @click="openAssignDialog('executor')">分配</el-link>
               </div>
             </div>
             </template>
@@ -101,7 +101,7 @@
                   </el-table-column>
                   <el-table-column v-if="!isSponsor" label="身份证附件" min-width="90" align="center">
                     <template #default="{ row }">
-                      <el-button v-if="idCardFiles(row).length" link type="primary" size="small" @click="openPreview(idCardFiles(row), '身份证')">查看</el-button>
+                      <el-link :underline="false" v-if="idCardFiles(row).length" type="primary" @click="openPreview(idCardFiles(row), '身份证')">查看</el-link>
                       <span v-else class="text-muted">-</span>
                     </template>
                   </el-table-column>
@@ -121,7 +121,7 @@
                   <el-table-column prop="laborForm" label="角色" min-width="90" show-overflow-tooltip />
                   <el-table-column label="劳务协议" width="120" align="center">
                     <template #default="{ row }">
-                      <el-button v-if="protocolUrl(row)" link type="primary" size="small" @click="openPreview([protocolUrl(row)], '劳务协议')">查看</el-button>
+                      <el-link :underline="false" v-if="protocolUrl(row)" type="primary" @click="openPreview([protocolUrl(row)], '劳务协议')">查看</el-link>
                       <span v-else class="text-muted">-</span>
                     </template>
                   </el-table-column>
@@ -152,11 +152,11 @@
                   <el-table-column v-if="!isSponsor && !isReadonly" label="操作" width="100" align="center" fixed="right">
                     <template #default="{ row }">
                       <div class="row-actions">
-                        <el-button link type="primary" size="small" @click="openAttendeeDialog(row)">编辑</el-button>
+                        <el-link :underline="false" type="primary" @click="openAttendeeDialog(row)">编辑</el-link>
                         <el-dropdown trigger="click" @command="(cmd) => onAttendeeCommand(cmd, row)">
-                          <el-button link type="primary" size="small" :loading="inviteLoadingId === row.id || esignLoadingId === row.id">
+                          <el-link :underline="false" type="primary" :disabled="inviteLoadingId === row.id || esignLoadingId === row.id">
                             更多<el-icon class="el-icon--right"><arrow-down /></el-icon>
-                          </el-button>
+                          </el-link>
                           <template #dropdown>
                             <el-dropdown-menu>
                               <el-dropdown-item command="invite" :disabled="inviteLoadingId === row.id">邀请参会</el-dropdown-item>