diff --git a/frontend/web/vite.config.ts b/frontend/web/vite.config.ts
index 6808b57..d2547cd 100644
--- a/frontend/web/vite.config.ts
+++ b/frontend/web/vite.config.ts
@@ -25,19 +25,20 @@ export default defineConfig({
     rollupOptions: {
       output: {
         manualChunks(id) {
-          // Monaco Editor — only used by Scenarios page
+          // Monaco Editor — only used by Scenarios page, cleanly isolated.
           if (id.includes('@monaco-editor') || id.includes('monaco-editor')) {
             return 'vendor-monaco'
           }
-          // @ant-design/charts — only used by Home page
-          if (id.includes('@ant-design/charts')) {
-            return 'vendor-charts'
-          }
-          // Ant Design core — used everywhere
+          // Ant Design core — used everywhere, one-way deps (no circular chunk).
           if (id.includes('antd') || id.includes('@ant-design/icons')) {
             return 'vendor-antd'
           }
-          // React + remaining libs — used everywhere, merged to avoid circular imports
+          // Everything else (React, @ant-design/charts + @antv/*, etc.) → vendor.
+          // NOTE: do NOT split @ant-design/charts into its own chunk — its deep
+          // @antv dependency graph creates a circular chunk reference that causes
+          // a runtime TDZ crash ("Cannot access 'd' before initialization").
+          // charts is loaded on the Home page (default route) anyway, so a
+          // separate chunk buys almost nothing.
           if (id.includes('node_modules')) {
             return 'vendor'
           }