fix(nox-api): address duplicate creation risks, pending upgrading issues, cache warm error handling, test speedups, and frontend display support for pending keys

frontend/src/views/Upstreams.vue

@@ -322,7 +322,7 @@
         </el-table-column>
         <el-table-column label="状态" width="96">
           <template #default="{ row }">
-            <el-tag size="small" :type="row.status === 'import_failed' || row.status === 'failed' ? 'danger' : row.status === 'imported' ? 'success' : 'info'">
+            <el-tag size="small" :type="row.status === 'import_failed' || row.status === 'failed' ? 'danger' : row.status === 'imported' ? 'success' : row.status === 'created_pending_key' ? 'warning' : 'info'">
               {{ keyStatusLabel(row.status) }}
             </el-tag>
           </template>
@@ -435,6 +435,7 @@
             <template #default="{ row }">
               <el-tag v-if="row.status === 'created'" size="small" type="success">新创建</el-tag>
               <el-tag v-else-if="row.status === 'exists'" size="small" type="info">已存在</el-tag>
+              <el-tag v-else-if="row.status === 'created_pending_key'" size="small" type="warning">待回填</el-tag>
               <el-tag v-else size="small" type="danger">失败</el-tag>
             </template>
           </el-table-column>
@@ -957,7 +958,7 @@ function shrinkError(value: string) {
   return value.length > 40 ? `${value.slice(0, 40)}…` : value
 }
 
-const keyStatusLabel = (s: string) => ({ created: '已创建', imported: '已导入', import_failed: '导入失败', failed: '失败' }[s] || s)
+const keyStatusLabel = (s: string) => ({ created: '已创建', imported: '已导入', import_failed: '导入失败', failed: '失败', created_pending_key: '待回填' }[s] || s)
 
 async function loadList() {
   tableLoading.value = true