feat: publish CodexPi contest snapshot

frontend/vite.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig, type Plugin } from 'vite'
+import react from '@vitejs/plugin-react'
+
+const buildId = `${Date.now()}`
+const versionAsset = ():Plugin => ({
+  name: 'codexpi-version-asset',
+  generateBundle(){this.emitFile({type:'asset',fileName:'version.json',source:JSON.stringify({build:buildId})})},
+})
+
+export default defineConfig({
+  define: {'__CODEXPI_BUILD_ID__': JSON.stringify(buildId)},
+  plugins: [react(),versionAsset()],
+  server: { host: '127.0.0.1', port: 5173, proxy: { '/api': 'http://127.0.0.1:8765', '/ws': { target: 'ws://127.0.0.1:8765', ws: true } } },
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks(id) {
+          if (['react-markdown', 'remark-gfm', 'rehype-highlight', 'highlight.js'].some(name => id.includes(`/node_modules/${name}/`))) return 'markdown'
+          if (['@xterm/xterm', '@xterm/addon-fit'].some(name => id.includes(`/node_modules/${name}/`))) return 'terminal'
+          if (['react', 'react-dom'].some(name => id.includes(`/node_modules/${name}/`))) return 'react'
+        },
+      },
+    },
+  },
+})