chore: import upstream snapshot with attribution

dash/vite.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+import tailwindcss from '@tailwindcss/vite'
+import { fileURLToPath, URL } from 'node:url'
+
+// base './' so the built assets load with relative URLs when the CLI serves
+// dist/dash from the local server root. Built output goes straight into the
+// package's dist/dash so `codeburn web` can serve it after `npm run build`.
+export default defineConfig({
+  plugins: [react(), tailwindcss()],
+  base: './',
+  resolve: {
+    alias: { '@': fileURLToPath(new URL('./src', import.meta.url)) },
+  },
+  build: {
+    outDir: '../dist/dash',
+    emptyOutDir: true,
+  },
+  server: {
+    port: 5173,
+    // During frontend dev, run `codeburn web` (CLI api on 4747) and `npm run dev`
+    // here; this proxies the data calls to the CLI.
+    proxy: { '/api': 'http://127.0.0.1:4747' },
+  },
+})