feat(web): add standalone Web Vite build configuration

Phase 3A.2: Create vite.web.config.mts for building the CLI serve
Web SPA independently from the Electron build pipeline.

- __IS_ELECTRON__ = false, __IS_BROWSER_STANDALONE__ = false
- Output to dist-web/ (gitignored)
- Dev proxy: /_web and /api -> localhost:3400 (chatlab serve)
- Resolve aliases for @electron/shared and @electron/preload
  (type-only imports, erased at build time)
- npm scripts: dev:web, build:web
- Same manualChunks strategy as Electron renderer build

.gitignore

@@ -17,6 +17,7 @@ error-log-*.txt
 
 # Project
 dist/
+dist-web/
 packages/server/native/
 .history/
 out

package.json

@@ -28,6 +28,8 @@
     "build:mac": "pnpm run build && electron-builder --mac --config electron-builder.yml -p never",
     "build:win": "pnpm run build && electron-builder --win --config electron-builder.yml -p never",
     "build:linux": "pnpm run build && electron-builder --linux --config electron-builder.yml -p never",
+    "dev:web": "vite --config vite.web.config.mts",
+    "build:web": "vite build --config vite.web.config.mts",
     "type-check:web": "vue-tsc --noEmit -p tsconfig.web.json",
     "type-check:node": "tsc --noEmit -p tsconfig.node.json",
     "type-check:all": "pnpm run type-check:web && pnpm run type-check:node",

vite.web.config.mts

@@ -0,0 +1,73 @@
+/**
+ * Web 版 Vite 构建配置
+ *
+ * 用于构建 CLI serve Web 的 SPA 前端（不含 Electron 依赖）。
+ * 输出到 dist-web/，由 chatlab serve 托管。
+ *
+ * 与 Electron renderer 构建的关键区别：
+ * - __IS_ELECTRON__ = false（使用 FetchAdapter 而非 window.chatApi）
+ * - 不包含 electron/preload 和 electron/main
+ * - 输出目录独立（dist-web/ vs out/renderer/）
+ */
+
+import { resolve } from 'path'
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import ui from '@nuxt/ui/vite'
+
+export default defineConfig({
+  root: 'src/',
+  base: '/',
+  resolve: {
+    alias: {
+      '@': resolve(__dirname, 'src/'),
+      '~': resolve(__dirname, 'src/'),
+      '@openchatlab': resolve(__dirname, 'packages'),
+      '@electron/shared': resolve(__dirname, 'electron/shared'),
+      '@electron/preload': resolve(__dirname, 'electron/preload'),
+    },
+  },
+  define: {
+    __IS_ELECTRON__: JSON.stringify(false),
+    __IS_BROWSER_STANDALONE__: JSON.stringify(false),
+  },
+  plugins: [
+    vue(),
+    ui({
+      ui: {
+        colors: {
+          primary: 'pink',
+          neutral: 'zinc',
+        },
+      },
+    }),
+  ],
+  build: {
+    outDir: resolve(__dirname, 'dist-web'),
+    emptyOutDir: true,
+    sourcemap: false,
+    rollupOptions: {
+      input: {
+        index: resolve(__dirname, 'src/index.html'),
+      },
+      output: {
+        manualChunks(id) {
+          if (id.includes('node_modules/echarts-wordcloud')) return 'vendor-echarts-wordcloud'
+          if (id.includes('node_modules/zrender')) return 'vendor-zrender'
+          if (id.includes('node_modules/echarts')) return 'vendor-echarts'
+          if (id.includes('node_modules/@nuxt/ui')) return 'vendor-nuxt-ui'
+          if (id.includes('node_modules/reka-ui')) return 'vendor-reka-ui'
+          if (id.includes('node_modules/@zumer/snapdom')) return 'vendor-snapdom'
+          return undefined
+        },
+      },
+    },
+  },
+  server: {
+    port: 3401,
+    proxy: {
+      '/_web': 'http://localhost:3400',
+      '/api': 'http://localhost:3400',
+    },
+  },
+})