feat(web-platform): release V0.4 balance control

wasm/web_platform/vite.config.ts

@@ -1,10 +1,24 @@
+import {readFileSync} from 'node:fs';
+import {dirname,resolve} from 'node:path';
+import {fileURLToPath} from 'node:url';
 import {defineConfig} from 'vitest/config';
+import type {Plugin} from 'vite';
 import react from '@vitejs/plugin-react';
+
+const PYODIDE_ASSETS=['pyodide.asm.js','pyodide.asm.wasm','python_stdlib.zip','pyodide-lock.json'] as const;
+const pyodideDirectory=resolve(dirname(fileURLToPath(import.meta.url)),'../node_modules/pyodide');
+
+/** 让开发服务器与生产构建都从本地 npm 包提供 Pyodide，保持平台可离线部署。 */
+function localPyodideAssets():Plugin {
+  let isBuild=false;
+  return {name:'local-pyodide-assets',configResolved(config){isBuild=config.command==='build';},configureServer(server){server.middlewares.use((request,response,next)=>{const name=request.url?.split(/[?#]/,1)[0].replace(/^\/pyodide\//,'');if(!name||!PYODIDE_ASSETS.includes(name as typeof PYODIDE_ASSETS[number])){next();return;}response.setHeader('Content-Type',name.endsWith('.wasm')?'application/wasm':name.endsWith('.zip')?'application/zip':name.endsWith('.json')?'application/json':'text/javascript');response.end(readFileSync(resolve(pyodideDirectory,name)));});},buildStart(){if(isBuild)for(const name of PYODIDE_ASSETS)this.emitFile({type:'asset',fileName:`pyodide/${name}`,source:readFileSync(resolve(pyodideDirectory,name))});}};
+}
+
 export default defineConfig({
-  root: 'web_platform', base: './', plugins: [react()], publicDir: 'public',
-  build: {outDir: '../web-platform-dist', emptyOutDir: true, target: 'es2022'},
-  worker: {format: 'es'},
-  server: {open: true, fs: {allow: ['..']}},
-  preview: {headers: {'Cache-Control': 'no-store'}},
-  test: {globals: true, environment: 'jsdom', setupFiles: './src/test/setup.ts', include: ['src/**/*.test.ts', 'src/**/*.test.tsx']}
+  root:'web_platform',base:'./',plugins:[react(),localPyodideAssets()],publicDir:'public',
+  build:{outDir:'../web-platform-dist',emptyOutDir:true,target:'es2022'},
+  worker:{format:'es'},
+  server:{open:true,fs:{allow:['..']}},
+  preview:{headers:{'Cache-Control':'no-store'}},
+  test:{globals:true,environment:'jsdom',setupFiles:'./src/test/setup.ts',include:['src/**/*.test.ts','src/**/*.test.tsx']}
 });