feat(monitoring): decouple AI platforms from media_platforms and expand catalog to 6

Add ai_platforms table + shared catalog (yuanbao/kimi/wenxin/deepseek/doubao/qwen),
drop FKs from platform_accounts and desktop_tasks to media_platforms, and wire
target_account_id + platform into DesktopTaskEvent so the desktop runtime no
longer has to infer them from local state. Desktop client gains generic AI page
detection for binding, drops stale-business-date monitor tasks at the edge, and
refactors AccountsView/AiPlatformsView around the shared catalog. Admin tracking
view surfaces per-platform sampling status cards.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/renderer/views/PublishManagementView.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ReloadOutlined, SearchOutlined } from "@ant-design/icons-vue";
+import { ClockCircleOutlined, ReloadOutlined, SearchOutlined, SendOutlined } from "@ant-design/icons-vue";
 import type { DesktopPublishTaskListResponse, DesktopTaskInfo, JsonValue } from "@geo/shared-types";
 import { computed, onMounted, onUnmounted, ref, watch } from "vue";
 
@@ -400,15 +400,29 @@ const tableColumns = [
 
           <template v-else-if="column.key === 'actions'">
             <div class="action-buttons">
-              <a-button
+              <a-popconfirm
                 v-if="!isPendingStatus(record.status)"
-                size="small"
-                :loading="actionPendingTaskId === record.id"
-                @click="retryTask(record.id)"
+                title="确定要重试本次发布吗？"
+                placement="topRight"
+                ok-text="确定"
+                cancel-text="取消"
+                @confirm="retryTask(record.id)"
               >
-                再次发送
-              </a-button>
-              <span v-else class="action-placeholder">排队中</span>
+                <a-tooltip title="再次发送" placement="top">
+                  <a-button
+                    type="text"
+                    class="icon-action-btn"
+                    :loading="actionPendingTaskId === record.id"
+                  >
+                    <template #icon><SendOutlined /></template>
+                  </a-button>
+                </a-tooltip>
+              </a-popconfirm>
+              <a-tooltip v-else title="排队中...">
+                <div class="action-placeholder-icon">
+                  <ClockCircleOutlined />
+                </div>
+              </a-tooltip>
             </div>
           </template>
         </template>
@@ -441,10 +455,11 @@ const tableColumns = [
 }
 
 .hero-copy {
-  padding: 24px;
+  padding: 28px;
   border-radius: 12px;
-  border: 1px solid #e6edf5;
-  background: #ffffff;
+  border: 1px solid #e2e8f0;
+  background: linear-gradient(135deg, #ffffff, #f8fafc);
+  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
 }
 
 .eyebrow,
@@ -487,13 +502,47 @@ h2 {
 
 .toolbar-stats,
 .toolbar-search,
-.status-cell,
-.action-buttons {
+.status-cell {
   display: flex;
   align-items: center;
   gap: 10px;
 }
 
+.action-buttons {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+}
+
+.icon-action-btn {
+  color: #64748b;
+  border-radius: 6px;
+  transition: all 0.2s ease;
+  background: transparent;
+  width: 32px;
+  height: 32px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+}
+
+.icon-action-btn:hover {
+  background: #f1f5f9;
+  color: #0ea5e9;
+}
+
+.action-placeholder-icon {
+  width: 32px;
+  height: 32px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  color: #94a3b8;
+  font-size: 16px;
+}
+
 .toolbar-stats {
   flex-wrap: wrap;
 }
@@ -512,10 +561,12 @@ h2 {
   min-height: 32px;
   padding: 0 12px;
   border-radius: 999px;
-  background: #f5f7fa;
-  color: #4b5563;
+  background: #f8fafc;
+  color: #475569;
   font-size: 12px;
   font-weight: 600;
+  border: 1px solid #e2e8f0;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
 }
 
 .cell-primary-secondary {
@@ -599,20 +650,23 @@ h2 {
 
 :deep(.publish-table .ant-table-thead > tr > th) {
   background: #f8fafc;
-  color: #4b5563;
-  font-size: 12px;
+  color: #475569;
+  font-size: 13px;
   font-weight: 600;
-  border-bottom: 1px solid #e6edf5;
+  border-bottom: 1px solid #e2e8f0;
+  padding: 12px 16px;
 }
 
 :deep(.publish-table .ant-table-tbody > tr > td) {
-  border-bottom: 1px solid #eef2f7;
+  border-bottom: 1px solid #f1f5f9;
   vertical-align: top;
   background: #ffffff;
+  padding: 16px;
+  transition: background-color 0.2s ease;
 }
 
 :deep(.publish-table .publish-row--pending > td) {
-  background: #fffbeb;
+  background: #fefce8;
 }
 
 :deep(.publish-table .ant-table-tbody > tr:hover > td) {