fix: reuse upstream keys for account import

frontend/src/views/Websites.vue

@@ -98,6 +98,16 @@
             <div class="panel-title">我的网站分组</div>
             <div class="panel-sub">{{ selectedWebsite?.name || '请选择网站' }}</div>
           </div>
+          <el-select
+            :model-value="selectedWebsite?.id"
+            size="small"
+            filterable
+            class="site-switcher"
+            placeholder="切换网站"
+            @change="onSelectedWebsiteChange"
+          >
+            <el-option v-for="site in websites" :key="site.id" :label="site.name" :value="site.id" />
+          </el-select>
           <el-button size="small" :disabled="!selectedWebsite" :loading="groupsLoading" @click="loadWebsiteGroups">拉取分组</el-button>
         </div>
         <el-table :data="websiteGroups" v-loading="groupsLoading" row-key="id" size="small" style="width:100%">
@@ -116,11 +126,24 @@
 
       <div class="panel">
         <div class="panel-head">
-          <div class="panel-title">分组绑定</div>
+          <div>
+            <div class="panel-title">分组绑定</div>
+            <div class="panel-sub">{{ selectedWebsite?.name || '请选择网站' }}</div>
+          </div>
+          <el-select
+            :model-value="selectedWebsite?.id"
+            size="small"
+            filterable
+            class="site-switcher"
+            placeholder="切换网站"
+            @change="onSelectedWebsiteChange"
+          >
+            <el-option v-for="site in websites" :key="site.id" :label="site.name" :value="site.id" />
+          </el-select>
           <el-button size="small" text :disabled="websites.length === 0" @click="openBindingCreate(selectedWebsite || websites[0])">新增绑定</el-button>
         </div>
         <div class="binding-list" v-loading="bindingLoading">
-          <div v-for="binding in bindings" :key="binding.id" class="binding-item">
+          <div v-for="binding in selectedWebsiteBindings" :key="binding.id" class="binding-item">
             <div class="binding-main">
               <div class="binding-title">{{ binding.website_name }} / {{ binding.target_group_name || binding.target_group_id }}</div>
               <div class="binding-meta">
@@ -135,7 +158,7 @@
               <el-button size="small" text type="danger" @click="deleteBinding(binding)"><el-icon><Delete /></el-icon></el-button>
             </div>
           </div>
-          <div v-if="!bindingLoading && bindings.length === 0" class="empty-hint">暂无绑定</div>
+          <div v-if="!bindingLoading && selectedWebsiteBindings.length === 0" class="empty-hint">暂无绑定</div>
         </div>
       </div>
     </div>
@@ -331,7 +354,7 @@
               <el-icon><Refresh /></el-icon>刷新导入状态
             </el-button>
             <span v-if="importSyncStatus" style="font-size:12px;color:var(--text-muted);margin-left:8px">
-              已校验 {{ importSyncStatus.total }} 个，清除 {{ importSyncStatus.cleared }} 个失效标记
+              已校验已导入标记 {{ importSyncStatus.total }} 个，清除 {{ importSyncStatus.cleared }} 个失效标记
             </span>
           </el-col>
         </el-row>
@@ -366,6 +389,9 @@
             <el-button size="small" text @click="selectAllImportableKeys">全选可导入 Key</el-button>
             <el-button size="small" text @click="clearImportAccountSelection">清空</el-button>
           </div>
+          <div v-if="importGeneratedKeys.length" class="import-stats">
+            总计 {{ importGeneratedKeys.length }} 个，现可导入 {{ importableGeneratedKeys.length }} 个，已导入 {{ importedGeneratedKeyCount }} 个，无明文 {{ missingPlaintextKeyCount }} 个
+          </div>
           <el-select
             v-model="importAccountsForm.upstream_key_ids"
             multiple
@@ -573,6 +599,7 @@ const importSourceGroups = computed(() => snapshotsByUpstream.value[importGroups
 
 function isImportableGeneratedKey(item: GeneratedUpstreamKey) {
   return item.id !== null
+    && item.has_key_value
     && item.status !== 'failed'
     && !(item.imported_website_id === importAccountsForm.value.website_id && item.imported_account_id)
 }
@@ -581,6 +608,21 @@ const importableGeneratedKeys = computed(() =>
   importGeneratedKeys.value.filter(isImportableGeneratedKey),
 )
 
+const importedGeneratedKeyCount = computed(() =>
+  importGeneratedKeys.value.filter((item) =>
+    item.imported_website_id === importAccountsForm.value.website_id && Boolean(item.imported_account_id),
+  ).length,
+)
+
+const missingPlaintextKeyCount = computed(() =>
+  importGeneratedKeys.value.filter((item) => !item.has_key_value).length,
+)
+
+const selectedWebsiteBindings = computed(() => {
+  if (!selectedWebsite.value) return []
+  return bindings.value.filter((binding) => binding.website_id === selectedWebsite.value?.id)
+})
+
 const selectedAccountGroups = computed(() => {
   const selected = new Set(importAccountsForm.value.upstream_key_ids)
   const rows = importableGeneratedKeys.value.filter((item) => item.id !== null && selected.has(item.id))
@@ -605,6 +647,14 @@ async function loadWebsites() {
   }
 }
 
+async function onSelectedWebsiteChange(value: number | string) {
+  const nextId = Number(value)
+  const next = websites.value.find((site) => site.id === nextId)
+  if (!next) return
+  selectedWebsite.value = next
+  await loadWebsiteGroups()
+}
+
 async function loadUpstreamGroups() {
   const upstreamRes = await upstreamsApi.list()
   upstreams.value = upstreamRes.data
@@ -682,12 +732,13 @@ async function loadLogs() {
 async function syncImportStatus() {
   const websiteId = importAccountsForm.value.website_id
   const upstreamId = importAccountsForm.value.upstream_id
-  if (!websiteId || !upstreamId) return
+  if (!websiteId || !upstreamId) return false
   syncingImportStatus.value = true
+  let reloaded = false
   try {
     const res = await websitesApi.syncImportedUpstreamKeys(websiteId, { upstream_id: upstreamId })
     // 校验请求完成时表单未切换
-    if (importAccountsForm.value.website_id !== websiteId || importAccountsForm.value.upstream_id !== upstreamId) return
+    if (importAccountsForm.value.website_id !== websiteId || importAccountsForm.value.upstream_id !== upstreamId) return false
     const items = res.data.items
     importSyncStatus.value = {
       total: items.length,
@@ -699,12 +750,14 @@ async function syncImportStatus() {
     }
     if (importAccountsForm.value.upstream_id === upstreamId) {
       await loadImportGeneratedKeys(upstreamId)
+      reloaded = true
     }
   } catch (e: any) {
     ElMessage.error(e.response?.data?.detail || '同步导入状态失败')
   } finally {
     syncingImportStatus.value = false
   }
+  return reloaded
 }
 
 async function loadImportGeneratedKeys(upstreamId: number) {
@@ -977,30 +1030,26 @@ async function openImportAccounts(site?: WebsiteData | null) {
   }
   importAccountResults.value = []
   importSyncStatus.value = null
-  await Promise.all([
-    loadImportTargetGroups(importAccountsForm.value.website_id),
-    loadImportGeneratedKeys(importAccountsForm.value.upstream_id),
-  ])
+  await loadImportTargetGroups(importAccountsForm.value.website_id)
   // 打开弹窗后自动同步导入状态（校验远端账号是否仍存在）
-  await syncImportStatus()
-  await loadImportGeneratedKeys(importAccountsForm.value.upstream_id)
+  const reloaded = await syncImportStatus()
+  if (!reloaded) await loadImportGeneratedKeys(importAccountsForm.value.upstream_id)
   importAccountsDialog.value = true
 }
 
 async function onImportAccountWebsiteChange(value: number) {
   importAccountsForm.value.target_group_map = {}
   await loadImportTargetGroups(value)
-  await syncImportStatus()
-  await loadImportGeneratedKeys(importAccountsForm.value.upstream_id)
+  const reloaded = await syncImportStatus()
+  if (!reloaded) await loadImportGeneratedKeys(importAccountsForm.value.upstream_id)
 }
 
 async function onImportAccountUpstreamChange(value: number) {
   importAccountsForm.value.upstream_key_ids = []
   importAccountsForm.value.target_group_map = {}
   importAccountResults.value = []
-  await loadImportGeneratedKeys(value)
-  await syncImportStatus()
-  await loadImportGeneratedKeys(value)
+  const reloaded = await syncImportStatus()
+  if (!reloaded) await loadImportGeneratedKeys(value)
 }
 
 function onPlatformModeChange(value: string) {
@@ -1199,6 +1248,11 @@ onMounted(loadAll)
   color: var(--el-color-danger);
 }
 
+.site-switcher {
+  width: 180px;
+  flex-shrink: 0;
+}
+
 .binding-actions {
   display: flex;
   align-items: center;
@@ -1216,6 +1270,11 @@ onMounted(loadAll)
   --el-button-border-color: var(--el-color-danger-light-5, #fbc4c4);
 }
 .binding-list { min-height: 120px; }
+.import-stats {
+  margin: 0 0 8px;
+  color: var(--text-muted);
+  font-size: 12px;
+}
 .binding-item {
   display: flex;
   align-items: center;