feat: 前端新增 Demo 模式支持

- 新增 demo 配置模块，支持静态托管环境（GitHub Pages/Vercel/Netlify）
- API client 集成自定义 adapter，Demo 模式下自动拦截请求返回 mock 数据
- 登录对话框适配 Demo 模式，显示演示账号提示信息
- 添加完整的 mock 数据处理器（用户、配额、用量、供应商等）
- 同步 token 状态到 mock handler，支持页面刷新后恢复会话

frontend/src/api/client.ts

@@ -1,6 +1,8 @@
-import axios from 'axios'
+import axios, { getAdapter } from 'axios'
-import type { AxiosInstance, AxiosRequestConfig, AxiosResponse } from 'axios'
+import type { AxiosInstance, AxiosRequestConfig, AxiosResponse, InternalAxiosRequestConfig, AxiosAdapter } from 'axios'
 import { NETWORK_CONFIG, AUTH_CONFIG } from '@/config/constants'
+import { isDemoMode } from '@/config/demo'
+import { handleMockRequest, setMockUserToken } from '@/mocks'
 import { log } from '@/utils/logger'
 
 // 在开发环境下使用代理,生产环境使用环境变量
@@ -42,6 +44,39 @@ function isRefreshableAuthError(errorDetail: string): boolean {
   return !nonRefreshableErrors.some((msg) => errorDetail.includes(msg))
 }
 
+/**
+ * 创建 Demo 模式的自定义 adapter
+ * 在 Demo 模式下拦截请求并返回 mock 数据
+ */
+function createDemoAdapter(defaultAdapter: AxiosAdapter) {
+  return async (config: InternalAxiosRequestConfig): Promise<AxiosResponse> => {
+    if (isDemoMode()) {
+      try {
+        const mockResponse = await handleMockRequest({
+          method: config.method?.toUpperCase(),
+          url: config.url,
+          data: config.data,
+          params: config.params,
+        })
+        if (mockResponse) {
+          // 确保响应包含 config
+          mockResponse.config = config
+          return mockResponse
+        }
+      } catch (error: any) {
+        // Mock 错误需要附加 config，否则 handleResponseError 会崩溃
+        if (error.response) {
+          error.config = config
+          error.response.config = config
+        }
+        throw error
+      }
+    }
+    // 非 Demo 模式或没有 mock 响应时，使用默认 adapter
+    return defaultAdapter(config)
+  }
+}
+
 class ApiClient {
   private client: AxiosInstance
   private token: string | null = null
@@ -57,6 +92,10 @@ class ApiClient {
       },
     })
 
+    // 设置自定义 adapter 处理 Demo 模式
+    const defaultAdapter = getAdapter(this.client.defaults.adapter)
+    this.client.defaults.adapter = createDemoAdapter(defaultAdapter)
+
     this.setupInterceptors()
   }
 
@@ -64,7 +103,7 @@ class ApiClient {
    * 配置请求和响应拦截器
    */
   private setupInterceptors(): void {
-    // 请求拦截器
+    // 请求拦截器 - 仅处理认证
     this.client.interceptors.request.use(
       (config) => {
         const requiresAuth = !isPublicEndpoint(config.url, config.method) &&
@@ -207,11 +246,19 @@ class ApiClient {
   setToken(token: string): void {
     this.token = token
     localStorage.setItem('access_token', token)
+    // 同步到 mock handler
+    if (isDemoMode()) {
+      setMockUserToken(token)
+    }
   }
 
   getToken(): string | null {
     if (!this.token) {
       this.token = localStorage.getItem('access_token')
+      // 页面刷新时，从 localStorage 恢复 token 到 mock handler
+      if (this.token && isDemoMode()) {
+        setMockUserToken(this.token)
+      }
     }
     return this.token
   }
@@ -220,12 +267,18 @@ class ApiClient {
     this.token = null
     localStorage.removeItem('access_token')
     localStorage.removeItem('refresh_token')
+    // 同步清除 mock token
+    if (isDemoMode()) {
+      setMockUserToken(null)
+    }
   }
 
   async refreshToken(refreshToken: string): Promise<AxiosResponse> {
+    // refreshToken 会通过 adapter 处理 Demo 模式
     return this.client.post('/api/auth/refresh', { refresh_token: refreshToken })
   }
 
+  // 以下方法直接委托给 axios client，Demo 模式由 adapter 统一处理
   async request<T = any>(config: AxiosRequestConfig): Promise<AxiosResponse<T>> {
     return this.client.request<T>(config)
   }

frontend/src/api/endpoints/types.ts

@@ -81,6 +81,7 @@ export interface EndpointHealthDetail {
   api_format: string
   health_score: number
   is_active: boolean
+  active_keys?: number
 }
 
 export interface EndpointHealthEvent {

frontend/src/config/demo.ts

@@ -0,0 +1,37 @@
+/**
+ * Demo Mode Configuration
+ * 用于 GitHub Pages 等静态托管环境的演示模式
+ */
+
+// 检测是否为演示模式环境
+export function isDemoMode(): boolean {
+  const hostname = window.location.hostname
+  return (
+    hostname.includes('github.io') ||
+    hostname.includes('vercel.app') ||
+    hostname.includes('netlify.app') ||
+    hostname.includes('pages.dev') ||
+    import.meta.env.VITE_DEMO_MODE === 'true'
+  )
+}
+
+// Demo 账号配置
+export const DEMO_ACCOUNTS = {
+  admin: {
+    email: 'admin@demo.aether.io',
+    password: 'demo123',
+    hint: '管理员账号'
+  },
+  user: {
+    email: 'user@demo.aether.io',
+    password: 'demo123',
+    hint: '普通用户'
+  }
+} as const
+
+// Demo 模式提示信息
+export const DEMO_MODE_INFO = {
+  title: '演示模式',
+  description: '当前处于演示模式，所有数据均为模拟数据，不会产生实际调用。',
+  accountHint: '可使用以下演示账号登录：'
+} as const

frontend/src/features/auth/components/LoginDialog.vue

@@ -11,6 +11,43 @@
         </h2>
       </div>
 
+      <!-- Demo 模式提示 -->
+      <div v-if="isDemo" class="rounded-lg border border-primary/20 dark:border-primary/30 bg-primary/5 dark:bg-primary/10 p-4">
+        <div class="flex items-start gap-3">
+          <div class="flex-shrink-0 text-primary dark:text-primary/90">
+            <svg class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
+              <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a.75.75 0 000 1.5h.253a.25.25 0 01.244.304l-.459 2.066A1.75 1.75 0 0010.747 15H11a.75.75 0 000-1.5h-.253a.25.25 0 01-.244-.304l.459-2.066A1.75 1.75 0 009.253 9H9z" clip-rule="evenodd" />
+            </svg>
+          </div>
+          <div class="flex-1 min-w-0">
+            <p class="text-sm font-medium text-foreground">
+              演示模式
+            </p>
+            <p class="mt-1 text-xs text-muted-foreground">
+              当前处于演示模式，所有数据均为模拟数据。
+            </p>
+            <div class="mt-3 space-y-2">
+              <button
+                type="button"
+                @click="fillDemoAccount('admin')"
+                class="flex items-center gap-2 text-xs text-muted-foreground hover:text-foreground transition-colors group"
+              >
+                <span class="inline-flex items-center justify-center w-5 h-5 rounded bg-primary/20 dark:bg-primary/30 text-primary text-[10px] font-bold group-hover:bg-primary/30 dark:group-hover:bg-primary/40 transition-colors">A</span>
+                <span>管理员：admin@demo.aether.io / demo123</span>
+              </button>
+              <button
+                type="button"
+                @click="fillDemoAccount('user')"
+                class="flex items-center gap-2 text-xs text-muted-foreground hover:text-foreground transition-colors group"
+              >
+                <span class="inline-flex items-center justify-center w-5 h-5 rounded bg-muted text-muted-foreground text-[10px] font-bold group-hover:bg-muted/80 transition-colors">U</span>
+                <span>普通用户：user@demo.aether.io / demo123</span>
+              </button>
+            </div>
+          </div>
+        </div>
+      </div>
+
       <!-- 登录表单 -->
       <form @submit.prevent="handleLogin" class="space-y-4">
         <div class="space-y-2">
@@ -32,14 +69,14 @@
             v-model="form.password"
             type="password"
             required
-            placeholder="••••••••"
+            placeholder="********"
             autocomplete="off"
             @keyup.enter="handleLogin"
           />
         </div>
 
         <!-- 提示信息 -->
-        <p class="text-xs text-slate-400 dark:text-muted-foreground/80">
+        <p v-if="!isDemo" class="text-xs text-slate-400 dark:text-muted-foreground/80">
           如需开通账户，请联系管理员配置访问权限
         </p>
       </form>
@@ -66,7 +103,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, watch } from 'vue'
+import { ref, watch, computed } from 'vue'
 import { useRouter } from 'vue-router'
 import { Dialog } from '@/components/ui'
 import Button from '@/components/ui/button.vue'
@@ -74,6 +111,7 @@ import Input from '@/components/ui/input.vue'
 import Label from '@/components/ui/label.vue'
 import { useAuthStore } from '@/stores/auth'
 import { useToast } from '@/composables/useToast'
+import { isDemoMode, DEMO_ACCOUNTS } from '@/config/demo'
 
 const props = defineProps<{
   modelValue: boolean
@@ -88,6 +126,7 @@ const authStore = useAuthStore()
 const { success: showSuccess, warning: showWarning, error: showError } = useToast()
 
 const isOpen = ref(props.modelValue)
+const isDemo = computed(() => isDemoMode())
 
 watch(() => props.modelValue, (val) => {
   isOpen.value = val
@@ -109,6 +148,12 @@ const form = ref({
   password: ''
 })
 
+function fillDemoAccount(type: 'admin' | 'user') {
+  const account = DEMO_ACCOUNTS[type]
+  form.value.email = account.email
+  form.value.password = account.password
+}
+
 async function handleLogin() {
   if (!form.value.email || !form.value.password) {
     showWarning('请输入邮箱和密码')

frontend/src/mocks/data.ts

@@ -0,0 +1,868 @@
+/**
+ * Demo Mode Mock Data
+ * 演示模式的模拟数据
+ */
+
+import type { User, LoginResponse } from '@/api/auth'
+import type { DashboardStatsResponse, RecentRequest, ProviderStatus, DailyStatsResponse } from '@/api/dashboard'
+import type { User as AdminUser, ApiKey } from '@/api/users'
+import type { AdminApiKey, AdminApiKeysResponse } from '@/api/admin'
+import type { Profile, UsageResponse } from '@/api/me'
+import type { ProviderWithEndpointsSummary, GlobalModelResponse } from '@/api/endpoints/types'
+
+// ========== 用户数据 ==========
+
+export const MOCK_ADMIN_USER: User = {
+  id: 'demo-admin-uuid-0001',
+  username: 'Demo Admin',
+  email: 'admin@demo.aether.io',
+  role: 'admin',
+  is_active: true,
+  quota_usd: null,
+  used_usd: 156.78,
+  total_usd: 1234.56,
+  allowed_providers: null,
+  allowed_endpoints: null,
+  allowed_models: null,
+  created_at: '2024-01-01T00:00:00Z',
+  last_login_at: new Date().toISOString()
+}
+
+export const MOCK_NORMAL_USER: User = {
+  id: 'demo-user-uuid-0002',
+  username: 'Demo User',
+  email: 'user@demo.aether.io',
+  role: 'user',
+  is_active: true,
+  quota_usd: 100,
+  used_usd: 45.32,
+  total_usd: 245.32,
+  allowed_providers: null,
+  allowed_endpoints: null,
+  allowed_models: null,
+  created_at: '2024-06-01T00:00:00Z',
+  last_login_at: new Date().toISOString()
+}
+
+export const MOCK_LOGIN_RESPONSE_ADMIN: LoginResponse = {
+  access_token: 'demo-access-token-admin',
+  refresh_token: 'demo-refresh-token-admin',
+  token_type: 'bearer',
+  expires_in: 3600,
+  user_id: MOCK_ADMIN_USER.id,
+  email: MOCK_ADMIN_USER.email,
+  username: MOCK_ADMIN_USER.username,
+  role: 'admin'
+}
+
+export const MOCK_LOGIN_RESPONSE_USER: LoginResponse = {
+  access_token: 'demo-access-token-user',
+  refresh_token: 'demo-refresh-token-user',
+  token_type: 'bearer',
+  expires_in: 3600,
+  user_id: MOCK_NORMAL_USER.id,
+  email: MOCK_NORMAL_USER.email,
+  username: MOCK_NORMAL_USER.username,
+  role: 'user'
+}
+
+// ========== Profile 数据 ==========
+
+export const MOCK_ADMIN_PROFILE: Profile = {
+  id: MOCK_ADMIN_USER.id!,
+  email: MOCK_ADMIN_USER.email!,
+  username: MOCK_ADMIN_USER.username,
+  role: 'admin',
+  is_active: true,
+  quota_usd: null,
+  used_usd: 156.78,
+  total_usd: 1234.56,
+  created_at: '2024-01-01T00:00:00Z',
+  updated_at: new Date().toISOString(),
+  last_login_at: new Date().toISOString(),
+  preferences: {
+    theme: 'auto',
+    language: 'zh-CN'
+  }
+}
+
+export const MOCK_USER_PROFILE: Profile = {
+  id: MOCK_NORMAL_USER.id!,
+  email: MOCK_NORMAL_USER.email!,
+  username: MOCK_NORMAL_USER.username,
+  role: 'user',
+  is_active: true,
+  quota_usd: 100,
+  used_usd: 45.32,
+  total_usd: 245.32,
+  created_at: '2024-06-01T00:00:00Z',
+  updated_at: new Date().toISOString(),
+  last_login_at: new Date().toISOString(),
+  preferences: {
+    theme: 'auto',
+    language: 'zh-CN'
+  }
+}
+
+// ========== Dashboard 数据 ==========
+
+export const MOCK_DASHBOARD_STATS: DashboardStatsResponse = {
+  stats: [
+    {
+      name: '今日请求',
+      value: '1,234',
+      subValue: '成功率 99.2%',
+      change: '+12.5%',
+      changeType: 'increase',
+      icon: 'Activity'
+    },
+    {
+      name: '今日 Token',
+      value: '2.5M',
+      subValue: '输入 1.8M / 输出 0.7M',
+      change: '+8.3%',
+      changeType: 'increase',
+      icon: 'Zap'
+    },
+    {
+      name: '今日费用',
+      value: '$45.67',
+      subValue: '节省 $12.34 (21%)',
+      change: '-5.2%',
+      changeType: 'decrease',
+      icon: 'DollarSign'
+    },
+    {
+      name: '活跃用户',
+      value: '28',
+      subValue: '总用户 156',
+      change: '+3',
+      changeType: 'increase',
+      icon: 'Users'
+    }
+  ],
+  today: {
+    requests: 1234,
+    tokens: 2500000,
+    cost: 45.67,
+    actual_cost: 33.33,
+    cache_creation_tokens: 50000,
+    cache_read_tokens: 200000
+  },
+  api_keys: {
+    total: 45,
+    active: 38
+  },
+  tokens: {
+    month: 75000000
+  },
+  system_health: {
+    avg_response_time: 1.23,
+    error_rate: 0.8,
+    error_requests: 10,
+    fallback_count: 5,
+    total_requests: 1234
+  },
+  cost_stats: {
+    total_cost: 45.67,
+    total_actual_cost: 33.33,
+    cost_savings: 12.34
+  },
+  cache_stats: {
+    cache_creation_tokens: 50000,
+    cache_read_tokens: 200000,
+    cache_creation_cost: 0.25,
+    cache_read_cost: 0.10,
+    cache_hit_rate: 0.35,
+    total_cache_tokens: 250000
+  },
+  users: {
+    total: 156,
+    active: 28
+  },
+  token_breakdown: {
+    input: 1800000,
+    output: 700000,
+    cache_creation: 50000,
+    cache_read: 200000
+  }
+}
+
+export const MOCK_RECENT_REQUESTS: RecentRequest[] = [
+  { id: 'req-001', user: 'alice', model: 'claude-sonnet-4-20250514', tokens: 15234, time: '2 分钟前' },
+  { id: 'req-002', user: 'bob', model: 'gpt-4o', tokens: 8765, time: '5 分钟前' },
+  { id: 'req-003', user: 'charlie', model: 'claude-opus-4-20250514', tokens: 32100, time: '8 分钟前' },
+  { id: 'req-004', user: 'diana', model: 'gemini-2.0-flash', tokens: 4521, time: '12 分钟前' },
+  { id: 'req-005', user: 'eve', model: 'claude-sonnet-4-20250514', tokens: 9876, time: '15 分钟前' },
+  { id: 'req-006', user: 'frank', model: 'gpt-4o-mini', tokens: 2345, time: '18 分钟前' },
+  { id: 'req-007', user: 'grace', model: 'claude-haiku-3-5-20241022', tokens: 6789, time: '22 分钟前' },
+  { id: 'req-008', user: 'henry', model: 'gemini-2.5-pro', tokens: 12345, time: '25 分钟前' }
+]
+
+export const MOCK_PROVIDER_STATUS: ProviderStatus[] = [
+  { name: 'Anthropic Official', status: 'active', requests: 456 },
+  { name: 'OpenAI Official', status: 'active', requests: 389 },
+  { name: 'Google AI', status: 'active', requests: 234 },
+  { name: 'AWS Bedrock', status: 'active', requests: 89 },
+  { name: 'Azure OpenAI', status: 'inactive', requests: 0 },
+  { name: 'Vertex AI', status: 'active', requests: 66 }
+]
+
+// 生成过去7天的每日统计数据
+function generateDailyStats(): DailyStatsResponse {
+  const dailyStats = []
+  const now = new Date()
+
+  for (let i = 6; i >= 0; i--) {
+    const date = new Date(now)
+    date.setDate(date.getDate() - i)
+    const dateStr = date.toISOString().split('T')[0]
+
+    const baseRequests = 800 + Math.floor(Math.random() * 600)
+    const baseTokens = 1500000 + Math.floor(Math.random() * 1500000)
+    const baseCost = 30 + Math.random() * 30
+
+    dailyStats.push({
+      date: dateStr,
+      requests: baseRequests,
+      tokens: baseTokens,
+      cost: Number(baseCost.toFixed(2)),
+      avg_response_time: 0.8 + Math.random() * 0.8,
+      unique_models: 8 + Math.floor(Math.random() * 5),
+      unique_providers: 4 + Math.floor(Math.random() * 3),
+      model_breakdown: [
+        { model: 'claude-sonnet-4-20250514', requests: Math.floor(baseRequests * 0.35), tokens: Math.floor(baseTokens * 0.35), cost: Number((baseCost * 0.35).toFixed(2)) },
+        { model: 'gpt-4o', requests: Math.floor(baseRequests * 0.25), tokens: Math.floor(baseTokens * 0.25), cost: Number((baseCost * 0.25).toFixed(2)) },
+        { model: 'claude-opus-4-20250514', requests: Math.floor(baseRequests * 0.15), tokens: Math.floor(baseTokens * 0.15), cost: Number((baseCost * 0.20).toFixed(2)) },
+        { model: 'gemini-2.0-flash', requests: Math.floor(baseRequests * 0.15), tokens: Math.floor(baseTokens * 0.15), cost: Number((baseCost * 0.10).toFixed(2)) },
+        { model: 'claude-haiku-3-5-20241022', requests: Math.floor(baseRequests * 0.10), tokens: Math.floor(baseTokens * 0.10), cost: Number((baseCost * 0.10).toFixed(2)) }
+      ]
+    })
+  }
+
+  return {
+    daily_stats: dailyStats,
+    model_summary: [
+      { model: 'claude-sonnet-4-20250514', requests: 2456, tokens: 8500000, cost: 125.45, avg_response_time: 1.2, cost_per_request: 0.051, tokens_per_request: 3461 },
+      { model: 'gpt-4o', requests: 1823, tokens: 6200000, cost: 98.32, avg_response_time: 0.9, cost_per_request: 0.054, tokens_per_request: 3401 },
+      { model: 'claude-opus-4-20250514', requests: 987, tokens: 4100000, cost: 156.78, avg_response_time: 2.1, cost_per_request: 0.159, tokens_per_request: 4154 },
+      { model: 'gemini-2.0-flash', requests: 1234, tokens: 3800000, cost: 28.56, avg_response_time: 0.6, cost_per_request: 0.023, tokens_per_request: 3079 },
+      { model: 'claude-haiku-3-5-20241022', requests: 2100, tokens: 5200000, cost: 32.10, avg_response_time: 0.5, cost_per_request: 0.015, tokens_per_request: 2476 }
+    ],
+    period: {
+      start_date: dailyStats[0].date,
+      end_date: dailyStats[dailyStats.length - 1].date,
+      days: 7
+    }
+  }
+}
+
+export const MOCK_DAILY_STATS = generateDailyStats()
+
+// ========== 用户管理数据 ==========
+
+export const MOCK_ALL_USERS: AdminUser[] = [
+  {
+    id: 'demo-admin-uuid-0001',
+    username: 'Demo Admin',
+    email: 'admin@demo.aether.io',
+    role: 'admin',
+    is_active: true,
+    quota_usd: null,
+    used_usd: 156.78,
+    total_usd: 1234.56,
+    allowed_providers: null,
+    allowed_endpoints: null,
+    allowed_models: null,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'demo-user-uuid-0002',
+    username: 'Demo User',
+    email: 'user@demo.aether.io',
+    role: 'user',
+    is_active: true,
+    quota_usd: 100,
+    used_usd: 45.32,
+    total_usd: 245.32,
+    allowed_providers: null,
+    allowed_endpoints: null,
+    allowed_models: null,
+    created_at: '2024-06-01T00:00:00Z'
+  },
+  {
+    id: 'demo-user-uuid-0003',
+    username: 'Alice Wang',
+    email: 'alice@example.com',
+    role: 'user',
+    is_active: true,
+    quota_usd: 50,
+    used_usd: 23.45,
+    total_usd: 123.45,
+    allowed_providers: null,
+    allowed_endpoints: null,
+    allowed_models: null,
+    created_at: '2024-03-15T00:00:00Z'
+  },
+  {
+    id: 'demo-user-uuid-0004',
+    username: 'Bob Zhang',
+    email: 'bob@example.com',
+    role: 'user',
+    is_active: true,
+    quota_usd: 200,
+    used_usd: 89.12,
+    total_usd: 589.12,
+    allowed_providers: null,
+    allowed_endpoints: null,
+    allowed_models: null,
+    created_at: '2024-02-20T00:00:00Z'
+  },
+  {
+    id: 'demo-user-uuid-0005',
+    username: 'Charlie Li',
+    email: 'charlie@example.com',
+    role: 'user',
+    is_active: false,
+    quota_usd: 30,
+    used_usd: 30.00,
+    total_usd: 30.00,
+    allowed_providers: null,
+    allowed_endpoints: null,
+    allowed_models: null,
+    created_at: '2024-04-10T00:00:00Z'
+  }
+]
+
+// ========== API Key 数据 ==========
+
+export const MOCK_USER_API_KEYS: ApiKey[] = [
+  {
+    id: 'key-uuid-001',
+    key_display: 'sk-ae...x7f9',
+    name: '开发环境',
+    created_at: '2024-06-15T00:00:00Z',
+    last_used_at: new Date().toISOString(),
+    is_active: true,
+    is_standalone: false,
+    total_requests: 1234,
+    total_cost_usd: 45.67
+  },
+  {
+    id: 'key-uuid-002',
+    key_display: 'sk-ae...m2k8',
+    name: '生产环境',
+    created_at: '2024-07-01T00:00:00Z',
+    last_used_at: new Date().toISOString(),
+    is_active: true,
+    is_standalone: false,
+    total_requests: 5678,
+    total_cost_usd: 123.45
+  },
+  {
+    id: 'key-uuid-003',
+    key_display: 'sk-ae...p9q1',
+    name: '测试用途',
+    created_at: '2024-08-01T00:00:00Z',
+    is_active: false,
+    is_standalone: false,
+    total_requests: 100,
+    total_cost_usd: 2.34
+  }
+]
+
+export const MOCK_ADMIN_API_KEYS: AdminApiKeysResponse = {
+  api_keys: [
+    {
+      id: 'standalone-key-001',
+      user_id: 'demo-user-uuid-0002',
+      user_email: 'user@demo.aether.io',
+      username: 'Demo User',
+      name: '独立余额 Key #1',
+      key_display: 'sk-sa...abc1',
+      is_active: true,
+      is_standalone: true,
+      balance_used_usd: 25.50,
+      current_balance_usd: 74.50,
+      total_requests: 500,
+      total_tokens: 1500000,
+      total_cost_usd: 25.50,
+      created_at: '2024-09-01T00:00:00Z',
+      last_used_at: new Date().toISOString()
+    },
+    {
+      id: 'standalone-key-002',
+      user_id: 'demo-user-uuid-0003',
+      user_email: 'alice@example.com',
+      username: 'Alice Wang',
+      name: '独立余额 Key #2',
+      key_display: 'sk-sa...def2',
+      is_active: true,
+      is_standalone: true,
+      balance_used_usd: 45.00,
+      current_balance_usd: 55.00,
+      total_requests: 800,
+      total_tokens: 2400000,
+      total_cost_usd: 45.00,
+      rate_limit: 60,
+      created_at: '2024-08-15T00:00:00Z',
+      last_used_at: new Date().toISOString()
+    }
+  ],
+  total: 2,
+  limit: 20,
+  skip: 0
+}
+
+// ========== Provider 数据 ==========
+
+export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
+  {
+    id: 'provider-001',
+    name: 'duck_coding_free',
+    display_name: 'DuckCodingFree',
+    description: '',
+    website: 'https://duckcoding.com',
+    provider_priority: 1,
+    billing_type: 'free_tier',
+    monthly_used_usd: 0.0,
+    is_active: true,
+    total_endpoints: 3,
+    active_endpoints: 3,
+    total_keys: 3,
+    active_keys: 3,
+    total_models: 7,
+    active_models: 7,
+    avg_health_score: 0.91,
+    unhealthy_endpoints: 0,
+    api_formats: ['CLAUDE_CLI', 'GEMINI_CLI', 'OPENAI_CLI'],
+    endpoint_health_details: [
+      { api_format: 'CLAUDE_CLI', health_score: 0.73, is_active: true, active_keys: 1 },
+      { api_format: 'GEMINI_CLI', health_score: 1.0, is_active: true, active_keys: 1 },
+      { api_format: 'OPENAI_CLI', health_score: 1.0, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-09T14:10:36.446217+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-002',
+    name: 'open_claude_code',
+    display_name: 'OpenClaudeCode',
+    description: '',
+    website: 'https://www.openclaudecode.cn',
+    provider_priority: 2,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 545.18,
+    is_active: true,
+    total_endpoints: 2,
+    active_endpoints: 2,
+    total_keys: 3,
+    active_keys: 3,
+    total_models: 3,
+    active_models: 1,
+    avg_health_score: 0.825,
+    unhealthy_endpoints: 0,
+    api_formats: ['CLAUDE', 'CLAUDE_CLI'],
+    endpoint_health_details: [
+      { api_format: 'CLAUDE', health_score: 1.0, is_active: true, active_keys: 2 },
+      { api_format: 'CLAUDE_CLI', health_score: 0.65, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-07T22:58:15.044538+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-003',
+    name: '88_code',
+    display_name: '88Code',
+    description: '',
+    website: 'https://www.88code.org/',
+    provider_priority: 3,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 33.36,
+    is_active: true,
+    total_endpoints: 2,
+    active_endpoints: 2,
+    total_keys: 2,
+    active_keys: 2,
+    total_models: 5,
+    active_models: 5,
+    avg_health_score: 1.0,
+    unhealthy_endpoints: 0,
+    api_formats: ['CLAUDE_CLI', 'OPENAI_CLI'],
+    endpoint_health_details: [
+      { api_format: 'CLAUDE_CLI', health_score: 1.0, is_active: true, active_keys: 1 },
+      { api_format: 'OPENAI_CLI', health_score: 1.0, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-07T22:56:46.361092+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-004',
+    name: 'ikun_code',
+    display_name: 'IKunCode',
+    description: '',
+    website: 'https://api.ikuncode.cc',
+    provider_priority: 4,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 268.65,
+    is_active: true,
+    total_endpoints: 4,
+    active_endpoints: 4,
+    total_keys: 3,
+    active_keys: 3,
+    total_models: 7,
+    active_models: 7,
+    avg_health_score: 1.0,
+    unhealthy_endpoints: 0,
+    api_formats: ['CLAUDE_CLI', 'GEMINI', 'GEMINI_CLI', 'OPENAI_CLI'],
+    endpoint_health_details: [
+      { api_format: 'CLAUDE_CLI', health_score: 1.0, is_active: true, active_keys: 1 },
+      { api_format: 'GEMINI', health_score: 1.0, is_active: true, active_keys: 1 },
+      { api_format: 'GEMINI_CLI', health_score: 1.0, is_active: true, active_keys: 1 },
+      { api_format: 'OPENAI_CLI', health_score: 1.0, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-07T15:16:55.807595+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-005',
+    name: 'duck_coding',
+    display_name: 'DuckCoding',
+    description: '',
+    website: 'https://duckcoding.com',
+    provider_priority: 5,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 5.29,
+    is_active: true,
+    total_endpoints: 6,
+    active_endpoints: 6,
+    total_keys: 11,
+    active_keys: 11,
+    total_models: 8,
+    active_models: 8,
+    avg_health_score: 0.863,
+    unhealthy_endpoints: 1,
+    api_formats: ['CLAUDE', 'CLAUDE_CLI', 'GEMINI', 'GEMINI_CLI', 'OPENAI', 'OPENAI_CLI'],
+    endpoint_health_details: [
+      { api_format: 'CLAUDE', health_score: 1.0, is_active: true, active_keys: 2 },
+      { api_format: 'CLAUDE_CLI', health_score: 0.48, is_active: true, active_keys: 2 },
+      { api_format: 'GEMINI', health_score: 1.0, is_active: true, active_keys: 2 },
+      { api_format: 'GEMINI_CLI', health_score: 0.85, is_active: true, active_keys: 2 },
+      { api_format: 'OPENAI', health_score: 0.85, is_active: true, active_keys: 2 },
+      { api_format: 'OPENAI_CLI', health_score: 1.0, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-07T22:56:09.712806+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-006',
+    name: 'privnode',
+    display_name: 'Privnode',
+    description: '',
+    website: 'https://privnode.com',
+    provider_priority: 6,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 0.0,
+    is_active: true,
+    total_endpoints: 0,
+    active_endpoints: 0,
+    total_keys: 0,
+    active_keys: 0,
+    total_models: 6,
+    active_models: 6,
+    avg_health_score: 1.0,
+    unhealthy_endpoints: 0,
+    api_formats: [],
+    endpoint_health_details: [],
+    created_at: '2024-12-07T22:57:18.069024+08:00',
+    updated_at: new Date().toISOString()
+  },
+  {
+    id: 'provider-007',
+    name: 'undying_api',
+    display_name: 'UndyingAPI',
+    description: '',
+    website: 'https://vip.undyingapi.com',
+    provider_priority: 7,
+    billing_type: 'pay_as_you_go',
+    monthly_used_usd: 6.6,
+    is_active: true,
+    total_endpoints: 1,
+    active_endpoints: 1,
+    total_keys: 1,
+    active_keys: 1,
+    total_models: 1,
+    active_models: 1,
+    avg_health_score: 1.0,
+    unhealthy_endpoints: 0,
+    api_formats: ['GEMINI'],
+    endpoint_health_details: [
+      { api_format: 'GEMINI', health_score: 1.0, is_active: true, active_keys: 1 }
+    ],
+    created_at: '2024-12-07T23:00:42.559105+08:00',
+    updated_at: new Date().toISOString()
+  }
+]
+
+// ========== GlobalModel 数据 ==========
+
+export const MOCK_GLOBAL_MODELS: GlobalModelResponse[] = [
+  {
+    id: 'gm-001',
+    name: 'claude-haiku-4-5-20251001',
+    display_name: 'claude-haiku-4-5',
+    description: 'Anthropic 最快速的 Claude 4 系列模型',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 1.00, output_price_per_1m: 5.00, cache_creation_price_per_1m: 1.25, cache_read_price_per_1m: 0.1 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 3,
+    alias_count: 2,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-002',
+    name: 'claude-opus-4-5-20251101',
+    display_name: 'claude-opus-4-5',
+    description: 'Anthropic 最强大的模型',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 5.00, output_price_per_1m: 25.00, cache_creation_price_per_1m: 6.25, cache_read_price_per_1m: 0.5 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 2,
+    alias_count: 1,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-003',
+    name: 'claude-sonnet-4-5-20250929',
+    display_name: 'claude-sonnet-4-5',
+    description: 'Anthropic 平衡型模型，支持 1h 缓存和 CLI 1M 上下文',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [
+        {
+          "up_to": 200000,
+          "input_price_per_1m": 3,
+          "output_price_per_1m": 15,
+          "cache_creation_price_per_1m": 3.75,
+          "cache_read_price_per_1m": 0.3,
+          "cache_ttl_pricing": [
+            {
+              "ttl_minutes": 60,
+              "cache_creation_price_per_1m": 6
+            }
+          ]
+        },
+        {
+          "up_to": null,
+          "input_price_per_1m": 6,
+          "output_price_per_1m": 22.5,
+          "cache_creation_price_per_1m": 7.5,
+          "cache_read_price_per_1m": 0.6,
+          "cache_ttl_pricing": [
+            {
+              "ttl_minutes": 60,
+              "cache_creation_price_per_1m": 12
+            }
+          ]
+        }
+      ]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    supported_capabilities: ['cache_1h', 'cli_1m'],
+    provider_count: 3,
+    alias_count: 2,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-004',
+    name: 'gemini-3-pro-image-preview',
+    display_name: 'gemini-3-pro-image-preview',
+    description: 'Google Gemini 3 Pro 图像生成预览版',
+    is_active: true,
+    default_price_per_request: 0.300,
+    default_tiered_pricing: {
+      tiers: []
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: false,
+    default_supports_streaming: true,
+    default_supports_image_generation: true,
+    provider_count: 1,
+    alias_count: 0,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-005',
+    name: 'gemini-3-pro-preview',
+    display_name: 'gemini-3-pro-preview',
+    description: 'Google Gemini 3 Pro 预览版',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 2.00, output_price_per_1m: 12.00 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 1,
+    alias_count: 0,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-006',
+    name: 'gpt-5.1',
+    display_name: 'gpt-5.1',
+    description: 'OpenAI GPT-5.1 模型',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 1.25, output_price_per_1m: 10.00 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 2,
+    alias_count: 1,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-007',
+    name: 'gpt-5.1-codex',
+    display_name: 'gpt-5.1-codex',
+    description: 'OpenAI GPT-5.1 Codex 代码专用模型',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 1.25, output_price_per_1m: 10.00 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 2,
+    alias_count: 0,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-008',
+    name: 'gpt-5.1-codex-max',
+    display_name: 'gpt-5.1-codex-max',
+    description: 'OpenAI GPT-5.1 Codex Max 代码专用增强版',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 1.25, output_price_per_1m: 10.00 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 2,
+    alias_count: 0,
+    created_at: '2024-01-01T00:00:00Z'
+  },
+  {
+    id: 'gm-009',
+    name: 'gpt-5.1-codex-mini',
+    display_name: 'gpt-5.1-codex-mini',
+    description: 'OpenAI GPT-5.1 Codex Mini 轻量代码模型',
+    is_active: true,
+    default_tiered_pricing: {
+      tiers: [{ up_to: null, input_price_per_1m: 1.25, output_price_per_1m: 10.00 }]
+    },
+    default_supports_vision: true,
+    default_supports_function_calling: true,
+    default_supports_streaming: true,
+    default_supports_extended_thinking: true,
+    provider_count: 2,
+    alias_count: 0,
+    created_at: '2024-01-01T00:00:00Z'
+  }
+]
+
+// ========== Usage 数据 ==========
+
+export const MOCK_USAGE_RESPONSE: UsageResponse = {
+  total_requests: 1234,
+  total_input_tokens: 1800000,
+  total_output_tokens: 700000,
+  total_tokens: 2500000,
+  total_cost: 45.67,
+  total_actual_cost: 33.33,
+  avg_response_time: 1.23,
+  quota_usd: 100,
+  used_usd: 45.32,
+  summary_by_model: [
+    { model: 'claude-sonnet-4-20250514', requests: 456, input_tokens: 650000, output_tokens: 250000, total_tokens: 900000, total_cost_usd: 18.50, actual_total_cost_usd: 13.50 },
+    { model: 'gpt-4o', requests: 312, input_tokens: 480000, output_tokens: 180000, total_tokens: 660000, total_cost_usd: 12.30, actual_total_cost_usd: 9.20 },
+    { model: 'claude-haiku-3-5-20241022', requests: 289, input_tokens: 420000, output_tokens: 170000, total_tokens: 590000, total_cost_usd: 8.50, actual_total_cost_usd: 6.30 },
+    { model: 'gemini-2.0-flash', requests: 177, input_tokens: 250000, output_tokens: 100000, total_tokens: 350000, total_cost_usd: 6.37, actual_total_cost_usd: 4.33 }
+  ],
+  records: [
+    {
+      id: 'usage-001',
+      provider: 'anthropic',
+      model: 'claude-sonnet-4-20250514',
+      input_tokens: 1500,
+      output_tokens: 800,
+      total_tokens: 2300,
+      cost: 0.0165,
+      response_time_ms: 1234,
+      is_stream: true,
+      created_at: new Date().toISOString(),
+      status_code: 200,
+      input_price_per_1m: 3,
+      output_price_per_1m: 15
+    },
+    {
+      id: 'usage-002',
+      provider: 'openai',
+      model: 'gpt-4o',
+      input_tokens: 2000,
+      output_tokens: 500,
+      total_tokens: 2500,
+      cost: 0.01,
+      response_time_ms: 890,
+      is_stream: false,
+      created_at: new Date(Date.now() - 300000).toISOString(),
+      status_code: 200,
+      input_price_per_1m: 2.5,
+      output_price_per_1m: 10
+    }
+  ]
+}
+
+// ========== 系统配置 ==========
+
+export const MOCK_SYSTEM_CONFIGS = [
+  { key: 'rate_limit_enabled', value: true, description: '是否启用速率限制' },
+  { key: 'default_rate_limit', value: 60, description: '默认速率限制（请求/分钟）' },
+  { key: 'cache_enabled', value: true, description: '是否启用缓存' },
+  { key: 'default_cache_ttl', value: 3600, description: '默认缓存 TTL（秒）' },
+  { key: 'fallback_enabled', value: true, description: '是否启用故障转移' },
+  { key: 'max_fallback_attempts', value: 3, description: '最大故障转移次数' }
+]
+
+// ========== API 格式 ==========
+
+export const MOCK_API_FORMATS = {
+  formats: [
+    { value: 'claude', label: 'Claude API', default_path: '/v1/messages', aliases: [] },
+    { value: 'claude_cli', label: 'Claude CLI', default_path: '/v1/messages', aliases: [] },
+    { value: 'openai', label: 'OpenAI API', default_path: '/v1/chat/completions', aliases: [] },
+    { value: 'openai_cli', label: 'OpenAI Responses API', default_path: '/v1/responses', aliases: [] },
+    { value: 'gemini', label: 'Gemini API', default_path: '/v1beta/models', aliases: [] },
+    { value: 'gemini_cli', label: 'Gemini CLI', default_path: '/v1beta/models', aliases: [] }
+  ]
+}

frontend/src/mocks/index.ts

@@ -0,0 +1,6 @@
+/**
+ * Mock Module Index
+ */
+
+export { handleMockRequest, setMockUserToken, getMockUserToken } from './handler'
+export * from './data'