优化发布群租客清退与历史消息

frontend/src/features/admin/views/AdminSystemConfigsView.vue

@@ -102,6 +102,9 @@ const autoWelcomeConfig = computed(
 const listingGroupWelcomeConfig = computed(
   () => configs.value.find(item => item.key === 'chat.listing_group_welcome') || null
 )
+const renterRetentionConfig = computed(
+  () => configs.value.find(item => item.key === 'chat.renter_retention_days_after_order_end') || null
+)
 
 const regularConfigs = computed(() =>
   configs.value.filter(
@@ -114,7 +117,8 @@ const regularConfigs = computed(() =>
       item.key !== 'order.agreements' &&
       item.key !== 'profile.post_rental_notice' &&
       item.key !== 'chat.auto_welcome_message' &&
-      item.key !== 'chat.listing_group_welcome'
+      item.key !== 'chat.listing_group_welcome' &&
+      item.key !== 'chat.renter_retention_days_after_order_end'
   )
 )
 
@@ -200,6 +204,8 @@ function openEdit(row: SystemConfig) {
     agreementsVisible.value = true
   } else if (row.key === 'profile.post_rental_notice') {
     postRentalNoticeVisible.value = true
+  } else if (row.key === 'chat.renter_retention_days_after_order_end') {
+    generalVisible.value = true
   } else {
     generalVisible.value = true
   }
@@ -560,6 +566,39 @@ function formatConfigValue(row: SystemConfig) {
       </div>
     </section>
 
+    <section v-if="renterRetentionConfig" class="publish-config-panel">
+      <div class="publish-config-main">
+        <div>
+          <p class="eyebrow">Chat Retention</p>
+          <h2>发布群租客保留天数</h2>
+          <span>订单结束后，租客在发布群中保留的天数，超时后由后台任务自动移出。</span>
+        </div>
+        <el-button type="primary" @click="openEdit(renterRetentionConfig)">编辑天数</el-button>
+      </div>
+      <div class="publish-stat-grid home-stat-grid">
+        <div class="publish-stat">
+          <strong>{{ renterRetentionConfig.value }}</strong>
+          <span>当前天数</span>
+        </div>
+        <div class="publish-stat">
+          <strong>范围</strong>
+          <span>3-7 天</span>
+        </div>
+        <div class="publish-stat">
+          <strong>任务</strong>
+          <span>订单结束后自动清退</span>
+        </div>
+        <div class="publish-stat">
+          <strong>键</strong>
+          <span>{{ renterRetentionConfig.key }}</span>
+        </div>
+        <div class="publish-stat">
+          <strong>更新</strong>
+          <span>{{ formatHomeConfigStatus(renterRetentionConfig, '未初始化') }}</span>
+        </div>
+      </div>
+    </section>
+
     <el-table v-loading="loading" class="table-panel" :data="regularConfigs">
       <el-table-column prop="key" label="配置项" min-width="260" />
       <el-table-column label="当前值" min-width="180" show-overflow-tooltip>

frontend/src/shared/utils/systemConfigOptions.ts

@@ -53,6 +53,11 @@ export const systemConfigSelectOptions: Record<string, SystemConfigOption[]> = {
     { label: '管理员 ID 2', value: '2' },
     { label: '管理员 ID 3', value: '3' },
   ],
+  'chat.renter_retention_days_after_order_end': [
+    { label: '3 天', value: '3' },
+    { label: '5 天', value: '5' },
+    { label: '7 天', value: '7' },
+  ],
 }
 
 export function getSystemConfigSelectOptions(key: string) {