perf: 前端打包产物优化——路由级懒加载和 vendor 分包
- 使用 React.lazy() + Suspense 实现路由级代码分割 - 配置 manualChunks 将 react/tdesign/recharts 拆分为独立 vendor chunk - 页面组件改为 export default 以支持动态导入 - 新增 bundle-optimization 规范,更新 frontend 导航规范
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@@ -1,7 +1,7 @@
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import { Button } from 'tdesign-react';
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import { useNavigate } from 'react-router';
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export function NotFound() {
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export default function NotFound() {
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const navigate = useNavigate();
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return (
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@@ -6,7 +6,7 @@ import { ProviderTable } from './ProviderTable';
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import { ProviderForm } from './ProviderForm';
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import { ModelForm } from './ModelForm';
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export function ProvidersPage() {
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export default function ProvidersPage() {
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const { data: providers = [], isLoading } = useProviders();
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const createProvider = useCreateProvider();
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const updateProvider = useUpdateProvider();
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@@ -1,6 +1,6 @@
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import { Card } from 'tdesign-react';
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export function SettingsPage() {
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export default function SettingsPage() {
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return (
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<Card title="设置">
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<div style={{ textAlign: 'center', padding: '40px 0', color: 'var(--td-text-color-placeholder)' }}>
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@@ -5,7 +5,7 @@ import { StatCards } from './StatCards';
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import { UsageChart } from './UsageChart';
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import { StatsTable } from './StatsTable';
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export function StatsPage() {
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export default function StatsPage() {
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const { data: providers = [] } = useProviders();
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const [providerId, setProviderId] = useState<string | undefined>();
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@@ -1,20 +1,25 @@
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import { lazy, Suspense } from 'react';
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import { Routes, Route, Navigate } from 'react-router';
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import { Loading } from 'tdesign-react';
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import { AppLayout } from '@/components/AppLayout';
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import { ProvidersPage } from '@/pages/Providers';
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import { StatsPage } from '@/pages/Stats';
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import { SettingsPage } from '@/pages/Settings';
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import { NotFound } from '@/pages/NotFound';
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const ProvidersPage = lazy(() => import('@/pages/Providers'));
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const StatsPage = lazy(() => import('@/pages/Stats'));
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const SettingsPage = lazy(() => import('@/pages/Settings'));
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const NotFound = lazy(() => import('@/pages/NotFound'));
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export function AppRoutes() {
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return (
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<Routes>
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<Route element={<AppLayout />}>
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<Route index element={<Navigate to="/providers" replace />} />
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<Route path="providers" element={<ProvidersPage />} />
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<Route path="stats" element={<StatsPage />} />
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<Route path="settings" element={<SettingsPage />} />
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<Route path="*" element={<NotFound />} />
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</Route>
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</Routes>
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<Suspense fallback={<Loading />}>
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<Routes>
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<Route element={<AppLayout />}>
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<Route index element={<Navigate to="/providers" replace />} />
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<Route path="providers" element={<ProvidersPage />} />
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<Route path="stats" element={<StatsPage />} />
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<Route path="settings" element={<SettingsPage />} />
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<Route path="*" element={<NotFound />} />
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</Route>
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</Routes>
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</Suspense>
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);
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}
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@@ -2,6 +2,12 @@ import { defineConfig } from 'vite'
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import react from '@vitejs/plugin-react'
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import path from 'node:path'
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const vendorChunks: Record<string, string[]> = {
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'vendor-react': ['react', 'react-dom', 'react-router'],
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'vendor-tdesign': ['tdesign-react', 'tdesign-icons-react'],
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'vendor-recharts': ['recharts'],
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}
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// https://vite.dev/config/
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export default defineConfig({
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plugins: [react()],
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@@ -18,4 +24,20 @@ export default defineConfig({
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},
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},
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},
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build: {
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chunkSizeWarningLimit: 700,
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rollupOptions: {
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output: {
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manualChunks(id) {
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for (const [chunkName, modules] of Object.entries(vendorChunks)) {
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for (const mod of modules) {
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if (id.includes(`/node_modules/${mod}/`)) {
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return chunkName
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}
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}
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}
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},
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},
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},
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},
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})
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52
openspec/specs/bundle-optimization/spec.md
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52
openspec/specs/bundle-optimization/spec.md
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@@ -0,0 +1,52 @@
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# 前端构建包优化
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## Purpose
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TBD - 配置 Vite 构建优化策略,包括路由级代码分割和 Vendor 分包
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## Requirements
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### Requirement: 路由级代码分割
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前端 SHALL 使用 `React.lazy()` 和动态 `import()` 实现路由级代码分割,每个页面组件按需加载。
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#### Scenario: 页面组件懒加载
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- **WHEN** 应用启动
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- **THEN** 路由配置 SHALL 使用 `lazy(() => import(...))` 导入所有页面组件(ProvidersPage、StatsPage、SettingsPage、NotFound)
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- **THEN** 页面组件 SHALL NOT 使用静态 `import` 语句直接导入
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#### Scenario: Suspense 加载边界
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- **WHEN** 页面 chunk 尚未加载完成
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- **THEN** 路由出口 SHALL 显示 TDesign `Loading` 组件作为 fallback
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- **THEN** `Suspense` 边界 SHALL 包裹在 `<Routes>` 外层
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### Requirement: Vendor 分包
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前端 SHALL 配置 Vite `build.rollupOptions.output.manualChunks` 将第三方库拆分为独立 chunk。
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#### Scenario: React 核心 chunk
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- **WHEN** 执行生产构建
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- **THEN** react、react-dom、react-router SHALL 被打包为独立 chunk(vendor-react)
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#### Scenario: TDesign chunk
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- **WHEN** 执行生产构建
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- **THEN** tdesign-react、tdesign-icons-react SHALL 被打包为独立 chunk(vendor-tdesign)
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#### Scenario: Recharts chunk
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- **WHEN** 执行生产构建
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- **THEN** recharts SHALL 被打包为独立 chunk(vendor-recharts)
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#### Scenario: chunk 告警阈值
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- **WHEN** 执行生产构建
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- **THEN** `build.chunkSizeWarningLimit` SHALL 设置为 700,避免 vendor chunk 误触发告警
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#### Scenario: chunk 命名
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- **WHEN** 执行生产构建
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- **THEN** vendor chunk 文件名 SHALL 包含 chunk 名称前缀(如 `vendor-react-[hash].js`)
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@@ -422,23 +422,30 @@ TBD - 提供供应商、模型配置和用量统计的前端管理界面
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### Requirement: 提供导航
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前端 SHALL 使用 React Router v7 提供导航。
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前端 SHALL 使用 React Router v7 提供导航,并支持路由级懒加载。
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#### Scenario: 路由配置
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- **WHEN** 应用启动
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- **THEN** 前端 SHALL 使用 React Router v7 Library 模式(BrowserRouter)
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- **THEN** \`/providers\` 路径 SHALL 显示供应商管理页面
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- **THEN** \`/stats\` 路径 SHALL 显示用量统计页面
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- **THEN** \`/\` 路径 SHALL 重定向到 \`/providers\`
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- **THEN** `/providers` 路径 SHALL 显示供应商管理页面
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- **THEN** `/stats` 路径 SHALL 显示用量统计页面
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- **THEN** `/` 路径 SHALL 重定向到 `/providers`
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- **THEN** 不存在的路径 SHALL 显示 404 页面
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#### Scenario: 路由级懒加载
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- **WHEN** 用户访问某个路由
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- **THEN** 前端 SHALL 使用 `React.lazy()` 按需加载对应页面组件
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- **THEN** 页面组件加载期间 SHALL 显示 TDesign `Loading` 组件作为 fallback
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- **THEN** 所有页面组件 SHALL 通过动态 `import()` 导入
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#### Scenario: 导航菜单
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- **WHEN** 用户点击导航中的"供应商管理"
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- **THEN** 前端 SHALL 导航到 \`/providers\` 并高亮当前菜单项
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- **THEN** 前端 SHALL 导航到 `/providers` 并高亮当前菜单项
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- **WHEN** 用户点击导航中的"用量统计"
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- **THEN** 前端 SHALL 导航到 \`/stats\` 并高亮当前菜单项
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- **THEN** 前端 SHALL 导航到 `/stats` 并高亮当前菜单项
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#### Scenario: URL 同步
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