Clarify upstream key usage status

frontend/src/views/Upstreams.vue

@@ -402,12 +402,12 @@
         </el-table-column>
         <el-table-column label="状态" width="96">
           <template #default="{ row }">
-            <el-tooltip v-if="row.error || (row.status === 'orphaned' && row.imported_account_id)" :content="orphanedKeyTooltip(row)" placement="top" :show-after="300">
+            <el-tooltip v-if="hasKeyTooltip(row)" :content="keyRowTooltip(row)" placement="top" :show-after="300">
-              <el-tag size="small" :type="keyStatusTagType(row.status)">
+              <el-tag size="small" :type="keyStatusTagType(row)">
                 {{ keyStatusLabel(row) }}
               </el-tag>
             </el-tooltip>
-            <el-tag v-else size="small" :type="keyStatusTagType(row.status)">
+            <el-tag v-else size="small" :type="keyStatusTagType(row)">
               {{ keyStatusLabel(row) }}
             </el-tag>
           </template>
@@ -518,10 +518,10 @@
           </el-table-column>
           <el-table-column label="状态" width="120">
             <template #default="{ row }">
-              <el-tooltip v-if="row.error" :content="row.error" placement="top" :show-after="300">
+              <el-tooltip v-if="hasKeyTooltip(row)" :content="keyRowTooltip(row)" placement="top" :show-after="300">
-                <el-tag size="small" :type="keyStatusTagType(row.status)">{{ keyStatusLabel(row) }}</el-tag>
+                <el-tag size="small" :type="keyStatusTagType(row)">{{ keyStatusLabel(row) }}</el-tag>
               </el-tooltip>
-              <el-tag v-else size="small" :type="keyStatusTagType(row.status)">{{ keyStatusLabel(row) }}</el-tag>
+              <el-tag v-else size="small" :type="keyStatusTagType(row)">{{ keyStatusLabel(row) }}</el-tag>
             </template>
           </el-table-column>
         </el-table>
@@ -1058,15 +1058,20 @@ function shrinkError(value: string) {
 }
 
 const keyStatusLabel = (row: GeneratedUpstreamKey) => {
+  // orphaned 先区分是否仍有关联账号；无关联显示未被使用，有关联再按归档原因细分
   if (row.status === 'orphaned') {
+    if (!row.imported_account_id) return '未被使用'
     if (row.error?.startsWith('重复旧 Key')) return '重复旧 Key'
     if (row.error === '远端 Key 已不存在') return '远端缺失'
     if (row.error === '来源分组已不存在') return '来源分组缺失'
     return '已归档'
   }
+  // 有关联下游账号 → 已导入（优先于上游 Key 的原始状态）
+  if (row.imported_account_id) return '已导入'
+  // 无下游关联 → 按上游 Key 状态显示
   return ({
     created: '已创建',
-    exists: '已存在',
+    exists: '上游已存在',
     imported: '已导入',
     remote: '远端存在',
     replaced: '已替换',
@@ -1076,23 +1081,36 @@ const keyStatusLabel = (row: GeneratedUpstreamKey) => {
   }[row.status] || '未知状态')
 }
 
-const keyStatusTagType = (s: string) => {
+const keyStatusTagType = (row: GeneratedUpstreamKey) => {
+  const s = row.status
+  // orphaned 按是否有下游关联区分颜色
+  if (s === 'orphaned') return row.imported_account_id ? 'warning' : 'info'
+  // 有关联下游账号 → success
+  if (row.imported_account_id) return 'success'
+  // 按上游 Key 状态
   if (s === 'created' || s === 'imported') return 'success'
   if (s === 'exists' || s === 'remote') return 'info'
-  if (s === 'orphaned' || s === 'replaced' || s === 'created_pending_key') return 'warning'
+  if (s === 'replaced' || s === 'created_pending_key') return 'warning'
   if (s === 'failed' || s === 'import_failed') return 'danger'
   return 'info'
 }
 
-const orphanedKeyTooltip = (row: GeneratedUpstreamKey) => {
+const keyRowTooltip = (row: GeneratedUpstreamKey) => {
   const parts: string[] = []
   if (row.error) parts.push(row.error)
+  if (row.imported_account_id) {
+    parts.push(`已关联下游账号 ID: ${row.imported_account_id}`)
+  }
   if (row.status === 'orphaned' && row.imported_account_id) {
     parts.push('可到目标站「清理异常账号」中处理')
   }
   return parts.join('\n')
 }
 
+const hasKeyTooltip = (row: GeneratedUpstreamKey) => {
+  return !!(row.error || row.imported_account_id)
+}
+
 async function loadList() {
   tableLoading.value = true
   try {