feat: ProxyNode 代理节点管理系统与 OpenAI Responses API 解析增强

ProxyNode 系统：新增 aether-proxy（Rust）海外 VPS 代理组件，后端实现节点注册/心跳/
HMAC 认证/健康检测调度器/模块化集成，前端新增代理节点管理页面。ProxyConfig 支持
node_id 模式，http_client 支持 HMAC 签名代理 URL 构建与 TTL 缓存。

OpenAI CLI 解析器：适配 Responses API 格式，支持 input_tokens/output_tokens 提取、
output[].content[].text 文本解析、response.completed 流式事件 usage 嵌套结构。

frontend/src/api/proxy-nodes.ts

@@ -0,0 +1,36 @@
+import apiClient from './client'
+
+export interface ProxyNode {
+  id: string
+  name: string
+  ip: string
+  port: number
+  region: string | null
+  status: 'online' | 'unhealthy' | 'offline'
+  registered_by: string | null
+  last_heartbeat_at: string | null
+  heartbeat_interval: number
+  active_connections: number
+  total_requests: number
+  avg_latency_ms: number | null
+  created_at: string
+  updated_at: string
+}
+
+export interface ProxyNodeListResponse {
+  items: ProxyNode[]
+  total: number
+  skip: number
+  limit: number
+}
+
+export const proxyNodesApi = {
+  async listProxyNodes(params?: { status?: string; skip?: number; limit?: number }): Promise<ProxyNodeListResponse> {
+    const response = await apiClient.get<ProxyNodeListResponse>('/api/admin/proxy-nodes', { params })
+    return response.data
+  },
+
+  async deleteProxyNode(nodeId: string): Promise<void> {
+    await apiClient.delete(`/api/admin/proxy-nodes/${nodeId}`)
+  },
+}

frontend/src/layouts/MainLayout.vue

@@ -368,6 +368,7 @@ import {
   Video,
   Zap,
   FileUp,
+  Server,
   type LucideIcon,
 } from 'lucide-vue-next'
 
@@ -520,6 +521,7 @@ const navigation = computed(() => {
     FileUp,
     Shield,
     Puzzle,
+    Server,
   }
 
   // 添加模块菜单项（按 admin_menu_order 排序，只显示已激活的）

frontend/src/router/index.ts

@@ -230,6 +230,12 @@ const routes: RouteRecordRaw[] = [
         name: 'AsyncTasks',
         component: () => importWithRetry(() => import('@/views/admin/AsyncTasks.vue'))
       },
+      {
+        path: 'proxy-nodes',
+        name: 'ProxyNodes',
+        component: () => importWithRetry(() => import('@/views/admin/ProxyNodes.vue')),
+        meta: { module: 'proxy_nodes' }
+      },
       {
         path: 'gemini-files',
         name: 'GeminiFilesManagement',

frontend/src/stores/proxy-nodes.ts

@@ -0,0 +1,50 @@
+import { defineStore } from 'pinia'
+import { ref } from 'vue'
+import { proxyNodesApi, type ProxyNode } from '@/api/proxy-nodes'
+
+export const useProxyNodesStore = defineStore('proxy-nodes', () => {
+  const nodes = ref<ProxyNode[]>([])
+  const total = ref(0)
+  const loading = ref(false)
+  const error = ref<string | null>(null)
+
+  async function fetchNodes(params?: { status?: string }) {
+    loading.value = true
+    error.value = null
+
+    try {
+      const data = await proxyNodesApi.listProxyNodes({ ...params, limit: 1000 })
+      nodes.value = data.items
+      total.value = data.total
+    } catch (err: any) {
+      error.value = err.response?.data?.error?.message || err.response?.data?.detail || '获取代理节点列表失败'
+    } finally {
+      loading.value = false
+    }
+  }
+
+  async function deleteNode(nodeId: string) {
+    loading.value = true
+    error.value = null
+
+    try {
+      await proxyNodesApi.deleteProxyNode(nodeId)
+      nodes.value = nodes.value.filter(n => n.id !== nodeId)
+      total.value = Math.max(0, total.value - 1)
+    } catch (err: any) {
+      error.value = err.response?.data?.error?.message || err.response?.data?.detail || '删除代理节点失败'
+      throw err
+    } finally {
+      loading.value = false
+    }
+  }
+
+  return {
+    nodes,
+    total,
+    loading,
+    error,
+    fetchNodes,
+    deleteNode,
+  }
+})

frontend/src/views/admin/ProxyNodes.vue

@@ -0,0 +1,329 @@
+<template>
+  <div class="space-y-6 pb-8">
+    <Card variant="default" class="overflow-hidden">
+      <!-- 标题和筛选器 -->
+      <div class="px-4 sm:px-6 py-3.5 border-b border-border/60">
+        <!-- 移动端 -->
+        <div class="flex flex-col gap-3 sm:hidden">
+          <div class="flex items-center justify-between">
+            <h3 class="text-base font-semibold">
+              代理节点
+            </h3>
+            <RefreshButton
+              :loading="store.loading"
+              @click="refresh"
+            />
+          </div>
+          <div class="flex items-center gap-2">
+            <div class="relative flex-1">
+              <Search class="absolute left-2.5 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground z-10 pointer-events-none" />
+              <Input
+                v-model="searchQuery"
+                type="text"
+                placeholder="搜索..."
+                class="w-full pl-8 pr-3 h-8 text-sm bg-background/50 border-border/60"
+              />
+            </div>
+            <Select v-model="filterStatus">
+              <SelectTrigger class="w-24 h-8 text-xs border-border/60">
+                <SelectValue placeholder="状态" />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="all">全部</SelectItem>
+                <SelectItem value="online">在线</SelectItem>
+                <SelectItem value="unhealthy">异常</SelectItem>
+                <SelectItem value="offline">离线</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+        </div>
+
+        <!-- 桌面端 -->
+        <div class="hidden sm:flex items-center justify-between gap-4">
+          <h3 class="text-base font-semibold">
+            代理节点
+          </h3>
+          <div class="flex items-center gap-2">
+            <div class="relative">
+              <Search class="absolute left-2.5 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground z-10 pointer-events-none" />
+              <Input
+                v-model="searchQuery"
+                type="text"
+                placeholder="搜索..."
+                class="w-48 pl-8 pr-3 h-8 text-sm bg-background/50 border-border/60"
+              />
+            </div>
+            <div class="h-4 w-px bg-border" />
+            <Select v-model="filterStatus">
+              <SelectTrigger class="w-28 h-8 text-xs border-border/60">
+                <SelectValue placeholder="全部状态" />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="all">全部状态</SelectItem>
+                <SelectItem value="online">在线</SelectItem>
+                <SelectItem value="unhealthy">异常</SelectItem>
+                <SelectItem value="offline">离线</SelectItem>
+              </SelectContent>
+            </Select>
+            <div class="h-4 w-px bg-border" />
+            <RefreshButton
+              :loading="store.loading"
+              @click="refresh"
+            />
+          </div>
+        </div>
+      </div>
+
+      <!-- 桌面端表格 -->
+      <div class="hidden xl:block overflow-x-auto">
+        <Table>
+          <TableHeader>
+            <TableRow class="border-b border-border/60 hover:bg-transparent">
+              <TableHead class="w-[160px] h-12 font-semibold">名称</TableHead>
+              <TableHead class="w-[180px] h-12 font-semibold">地址</TableHead>
+              <TableHead class="w-[100px] h-12 font-semibold">区域</TableHead>
+              <TableHead class="w-[90px] h-12 font-semibold text-center">状态</TableHead>
+              <TableHead class="w-[100px] h-12 font-semibold text-center">连接数</TableHead>
+              <TableHead class="w-[100px] h-12 font-semibold text-center">总请求</TableHead>
+              <TableHead class="w-[100px] h-12 font-semibold text-center">延迟</TableHead>
+              <TableHead class="w-[160px] h-12 font-semibold">最后心跳</TableHead>
+              <TableHead class="w-[80px] h-12 font-semibold text-center">操作</TableHead>
+            </TableRow>
+          </TableHeader>
+          <TableBody>
+            <TableRow
+              v-for="node in paginatedNodes"
+              :key="node.id"
+              class="border-b border-border/40 hover:bg-muted/30 transition-colors"
+            >
+              <TableCell class="py-4">
+                <span class="text-sm font-semibold">{{ node.name }}</span>
+              </TableCell>
+              <TableCell class="py-4">
+                <code class="text-xs text-muted-foreground">{{ node.ip }}:{{ node.port }}</code>
+              </TableCell>
+              <TableCell class="py-4">
+                <span class="text-sm text-muted-foreground">{{ node.region || '-' }}</span>
+              </TableCell>
+              <TableCell class="py-4 text-center">
+                <Badge :variant="statusVariant(node.status)" class="font-medium px-2.5 py-0.5 text-xs">
+                  {{ statusLabel(node.status) }}
+                </Badge>
+              </TableCell>
+              <TableCell class="py-4 text-center">
+                <span class="text-sm tabular-nums">{{ node.active_connections }}</span>
+              </TableCell>
+              <TableCell class="py-4 text-center">
+                <span class="text-sm tabular-nums">{{ formatNumber(node.total_requests) }}</span>
+              </TableCell>
+              <TableCell class="py-4 text-center">
+                <span class="text-sm tabular-nums">{{ node.avg_latency_ms != null ? `${node.avg_latency_ms.toFixed(0)}ms` : '-' }}</span>
+              </TableCell>
+              <TableCell class="py-4">
+                <span class="text-xs text-muted-foreground">{{ formatTime(node.last_heartbeat_at) }}</span>
+              </TableCell>
+              <TableCell class="py-4 text-center">
+                <Button
+                  variant="ghost"
+                  size="icon"
+                  class="h-8 w-8"
+                  title="删除"
+                  @click="handleDelete(node)"
+                >
+                  <Trash2 class="h-4 w-4" />
+                </Button>
+              </TableCell>
+            </TableRow>
+            <TableRow v-if="paginatedNodes.length === 0">
+              <TableCell colspan="9" class="py-12 text-center text-muted-foreground text-sm">
+                {{ store.loading ? '加载中...' : '暂无代理节点' }}
+              </TableCell>
+            </TableRow>
+          </TableBody>
+        </Table>
+      </div>
+
+      <!-- 移动端卡片列表 -->
+      <div class="xl:hidden divide-y divide-border/40">
+        <div
+          v-for="node in paginatedNodes"
+          :key="node.id"
+          class="p-4 sm:p-5"
+        >
+          <div class="flex items-start justify-between mb-2">
+            <div>
+              <div class="font-semibold text-sm">{{ node.name }}</div>
+              <code class="text-xs text-muted-foreground">{{ node.ip }}:{{ node.port }}</code>
+            </div>
+            <Badge :variant="statusVariant(node.status)" class="text-xs">
+              {{ statusLabel(node.status) }}
+            </Badge>
+          </div>
+          <div class="grid grid-cols-3 gap-2 text-xs text-muted-foreground mb-3">
+            <div>
+              <span class="block text-foreground/60">区域</span>
+              <span>{{ node.region || '-' }}</span>
+            </div>
+            <div>
+              <span class="block text-foreground/60">连接</span>
+              <span class="tabular-nums">{{ node.active_connections }}</span>
+            </div>
+            <div>
+              <span class="block text-foreground/60">延迟</span>
+              <span class="tabular-nums">{{ node.avg_latency_ms != null ? `${node.avg_latency_ms.toFixed(0)}ms` : '-' }}</span>
+            </div>
+          </div>
+          <div class="flex items-center justify-between">
+            <span class="text-xs text-muted-foreground">{{ formatTime(node.last_heartbeat_at) }}</span>
+            <Button
+              variant="ghost"
+              size="sm"
+              class="h-7 px-2 text-xs"
+              @click="handleDelete(node)"
+            >
+              <Trash2 class="h-3 w-3 mr-1" />
+              删除
+            </Button>
+          </div>
+        </div>
+        <div v-if="paginatedNodes.length === 0" class="p-8 text-center text-muted-foreground text-sm">
+          {{ store.loading ? '加载中...' : '暂无代理节点' }}
+        </div>
+      </div>
+
+      <!-- 分页 -->
+      <Pagination
+        :current="currentPage"
+        :total="filteredNodes.length"
+        :page-size="pageSize"
+        cache-key="proxy-nodes-page-size"
+        @update:current="currentPage = $event"
+        @update:page-size="pageSize = $event"
+      />
+    </Card>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted, watch } from 'vue'
+import { useProxyNodesStore } from '@/stores/proxy-nodes'
+import { useToast } from '@/composables/useToast'
+import { useConfirm } from '@/composables/useConfirm'
+import type { ProxyNode } from '@/api/proxy-nodes'
+
+import {
+  Card,
+  Button,
+  Badge,
+  Input,
+  Select,
+  SelectTrigger,
+  SelectValue,
+  SelectContent,
+  SelectItem,
+  Table,
+  TableHeader,
+  TableBody,
+  TableRow,
+  TableHead,
+  TableCell,
+  Pagination,
+  RefreshButton,
+} from '@/components/ui'
+
+import { Search, Trash2 } from 'lucide-vue-next'
+
+const { success, error: toastError } = useToast()
+const { confirmDanger } = useConfirm()
+const store = useProxyNodesStore()
+
+const searchQuery = ref('')
+const filterStatus = ref('all')
+const currentPage = ref(1)
+const pageSize = ref(20)
+
+const filteredNodes = computed(() => {
+  let filtered = [...store.nodes]
+
+  if (searchQuery.value) {
+    const keywords = searchQuery.value.toLowerCase().split(/\s+/).filter(k => k.length > 0)
+    filtered = filtered.filter(node => {
+      const text = `${node.name} ${node.ip} ${node.region || ''}`.toLowerCase()
+      return keywords.every(kw => text.includes(kw))
+    })
+  }
+
+  if (filterStatus.value !== 'all') {
+    filtered = filtered.filter(node => node.status === filterStatus.value)
+  }
+
+  return filtered
+})
+
+const paginatedNodes = computed(() => {
+  const start = (currentPage.value - 1) * pageSize.value
+  return filteredNodes.value.slice(start, start + pageSize.value)
+})
+
+watch([searchQuery, filterStatus], () => {
+  currentPage.value = 1
+})
+
+onMounted(async () => {
+  await store.fetchNodes()
+})
+
+async function refresh() {
+  await store.fetchNodes()
+}
+
+async function handleDelete(node: ProxyNode) {
+  const confirmed = await confirmDanger(
+    `确定要删除代理节点 "${node.name}" (${node.ip}:${node.port}) 吗？`,
+    '删除节点'
+  )
+  if (!confirmed) return
+
+  try {
+    await store.deleteNode(node.id)
+    success('代理节点已删除')
+  } catch (err: any) {
+    toastError(err.response?.data?.error?.message || '删除失败')
+  }
+}
+
+function statusVariant(status: string) {
+  switch (status) {
+    case 'online': return 'success' as const
+    case 'unhealthy': return 'secondary' as const
+    case 'offline': return 'destructive' as const
+    default: return 'secondary' as const
+  }
+}
+
+function statusLabel(status: string) {
+  switch (status) {
+    case 'online': return '在线'
+    case 'unhealthy': return '异常'
+    case 'offline': return '离线'
+    default: return status
+  }
+}
+
+function formatNumber(n: number) {
+  if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)}M`
+  if (n >= 1_000) return `${(n / 1_000).toFixed(1)}K`
+  return String(n)
+}
+
+function formatTime(iso: string | null) {
+  if (!iso) return '-'
+  const d = new Date(iso)
+  const now = new Date()
+  const diff = (now.getTime() - d.getTime()) / 1000
+  if (diff < 60) return '刚刚'
+  if (diff < 3600) return `${Math.floor(diff / 60)}分钟前`
+  if (diff < 86400) return `${Math.floor(diff / 3600)}小时前`
+  return d.toLocaleDateString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit' })
+}
+</script>