fix(appeal): close Phase 18 KEEP-VERIFY — 8 defects (zero-coverage appeals table + 6 fake-green tests; operator-notification FK crash; appealType CHECK; escalated dead-end; processAppeal race; soft-delete filters; hardcoded resolved; evidence contract); add AppealPhase18IntegrationTest (15); full regression 494 green

admin-web/src/modules/appeal/AppealCenterView.vue

@@ -32,7 +32,7 @@
         </el-table-column>
         <el-table-column label="操作" width="120">
           <template #default="{row}">
-            <el-button v-if="row.status==='pending'" type="primary" size="small" @click="openDetail(row.id)">处理</el-button>
+            <el-button v-if="row.status==='pending'||row.status==='escalated'" type="primary" size="small" @click="openDetail(row.id)">处理</el-button>
             <el-button size="small" @click="openDetail(row.id)">查看</el-button>
           </template>
         </el-table-column>
@@ -59,7 +59,7 @@
           </el-descriptions-item>
         </el-descriptions>
 
-        <template v-if="detail.status==='pending'||detail.status==='reviewing'">
+        <template v-if="detail.status==='pending'||detail.status==='reviewing'||detail.status==='escalated'">
           <h4 style="margin:20px 0 12px;color:#E96B6B">审核决策</h4>
           <el-form label-width="100px">
             <el-form-item label="处理结果">