feat(web): separate command to build with rollup plugin visualizer (#9097)

separate command to build with rollup plugin visualizer

web/package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "dev": "vite dev --host 0.0.0.0 --port 3000",
     "build": "vite build",
+    "build:stats": "BUILD_STATS=true vite build",
     "package": "svelte-kit package",
     "preview": "vite preview",
     "check:svelte": "svelte-check --no-tsconfig --fail-on-warnings",

web/vite.config.js

@@ -30,10 +30,12 @@ export default defineConfig({
   },
   plugins: [
     sveltekit(),
-    visualizer({
-      emitFile: true,
-      filename: 'stats.html',
-    }),
+    process.env.BUILD_STATS === 'true'
+      ? visualizer({
+          emitFile: true,
+          filename: 'stats.html',
+        })
+      : undefined,
     enhancedImages(),
   ],
   optimizeDeps: {