fix(btpanel): 连接配置页始终显示全局设置

未选服务器时不再隐藏整页内容，避免白屏。

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/changelog/2026-06-21-btpanel-settings-empty-page.md

@@ -0,0 +1,24 @@
+# Changelog — 宝塔连接配置页空白修复（2026-06-21）
+
+**日期**：2026-06-21
+
+## 摘要
+
+修复「连接配置」在未选服务器时整页几乎空白：全局设置（中心 IP、自动获取、批量初始化）现始终可见。
+
+## 动机
+
+`BtPanelPageShell` 原先要求先选服务器才渲染插槽，全局配置被挡在门外，用户看到白屏或仅一条提示。
+
+## 涉及文件
+
+- `frontend/src/components/btpanel/BtPanelPageShell.vue` — 新增 `requireServer`（默认 true）
+- `frontend/src/pages/btpanel/BtPanelSettingsPage.vue` — `require-server=false`，单机块按选中状态展示
+
+## 迁移 / 重启
+
+- 仅前端
+
+## 验证
+
+打开 `#/btpanel/settings`：应立刻看到「全局」卡片；选服务器后显示「当前服务器」表单。

frontend/src/components/btpanel/BtPanelPageShell.vue

@@ -16,9 +16,9 @@
       </div>
     </div>
 
-    <v-alert v-if="!serverId" type="info" variant="tonal" class="mb-4" text="请选择服务器" />
+    <v-alert v-if="props.requireServer && !serverId" type="info" variant="tonal" class="mb-4" text="请选择服务器" />
 
-    <slot v-else :server-id="serverId" :server="selected()" />
+    <slot :server-id="serverId" :server="selected()" />
   </v-container>
 </template>
 
@@ -28,10 +28,14 @@ import BtPanelServerPicker from '@/components/btpanel/BtPanelServerPicker.vue'
 import { btPanelContextKey } from '@/composables/btpanel/btPanelContext'
 import { useBtPanelServer } from '@/composables/btpanel/useBtPanelServer'
 
-defineProps<{
+const props = withDefaults(defineProps<{
   title: string
   subtitle?: string
-}>()
+  /** 为 false 时未选服务器也渲染默认插槽（如连接配置页的全局块） */
+  requireServer?: boolean
+}>(), {
+  requireServer: true,
+})
 
 const ctx = useBtPanelServer()
 const { servers, serverId, loading, loadServers, setServerId, selected } = ctx

frontend/src/pages/btpanel/BtPanelSettingsPage.vue

@@ -1,5 +1,9 @@
 <template>
-  <BtPanelPageShell title="宝塔 · 连接配置" subtitle="SSH 自动获取 API 或手动填写面板地址与密钥">
+  <BtPanelPageShell
+    title="宝塔 · 连接配置"
+    subtitle="SSH 自动获取 API 或手动填写面板地址与密钥"
+    :require-server="false"
+  >
     <template #default="{ serverId }">
       <v-card max-width="720" variant="outlined" rounded="lg" class="mb-4">
         <v-card-title class="text-subtitle-1">全局</v-card-title>
@@ -33,17 +37,34 @@
           >
             批量初始化未配置（{{ unconfiguredIds.length }}）
           </v-btn>
+          <v-alert
+            v-if="globalLoaded && !serverList.length"
+            type="warning"
+            variant="tonal"
+            class="mt-4"
+            title="暂无服务器"
+            text="请先在「服务器」页添加子机，再回到此处配置宝塔连接。"
+          />
         </v-card-text>
       </v-card>
 
-      <v-card max-width="720" variant="outlined" rounded="lg" :loading="loading">
+      <v-alert
+        v-if="!serverId"
+        type="info"
+        variant="tonal"
+        class="mb-4"
+        title="单机配置"
+        text="请在右上角选择服务器，或从「服务器列表」点击「连接配置」进入。"
+      />
+
+      <v-card v-else max-width="720" variant="outlined" rounded="lg" :loading="loading">
+        <v-card-title class="text-subtitle-1">当前服务器</v-card-title>
         <v-card-text>
           <div class="d-flex flex-wrap align-center ga-2 mb-3">
             <v-chip :color="btInstalledChipColor" size="small" variant="tonal">
               SSH 检测：{{ btInstalledLabel }}
             </v-chip>
             <v-btn
-              v-if="serverId"
               icon="mdi-refresh"
               size="x-small"
               variant="text"
@@ -66,11 +87,11 @@
             variant="tonal"
             class="mb-4"
             :loading="bootstrapping"
-            @click="runBootstrap(serverId!)"
+            @click="runBootstrap(serverId)"
           >
             立即 SSH 获取
           </v-btn>
-          <v-form @submit.prevent="save(serverId!)">
+          <v-form @submit.prevent="save(serverId)">
             <v-switch
               v-model="form.auto_bootstrap"
               label="自动获取（每 5 分钟重试，直至成功）"
@@ -145,6 +166,7 @@ const globalSettings = ref<BtPanelGlobalSettings | null>(null)
 const serverList = ref<Awaited<ReturnType<typeof listBtServers>>>([])
 const form = reactive({ base_url: '', api_key: '', verify_ssl: false, auto_bootstrap: true })
 const globalForm = reactive({ bt_panel_source_ip: '', bt_panel_auto_bootstrap_enabled: true })
+const globalLoaded = ref(false)
 
 const bootstrapStateLabels: Record<string, string> = {
   pending: '等待获取',
@@ -201,7 +223,7 @@ async function loadConfig(id: number, refreshBtInstalled = false) {
   }
 }
 
-const { serverId } = useBtPanelPageLoad(async (id) => {
+useBtPanelPageLoad(async (id) => {
   await loadConfig(id)
 })
 
@@ -224,6 +246,8 @@ async function loadGlobal() {
     serverList.value = await listBtServers()
   } catch (e: unknown) {
     window.$snackbar?.(e instanceof Error ? e.message : '加载全局设置失败', 'error')
+  } finally {
+    globalLoaded.value = true
   }
 }