fix: build warning about chunik size

tests/renderer/viteConfig.test.ts

@@ -0,0 +1,25 @@
+// @vitest-environment node
+
+import { describe, expect, it } from 'vitest';
+import viteConfig from '../../vite.config';
+
+describe('vite renderer chunking', () => {
+  it('splits monaco editor modules into a dedicated chunk', () => {
+    const resolved = typeof viteConfig === 'function' ? viteConfig({ command: 'build', mode: 'production', isSsrBuild: false, isPreview: false }) : viteConfig;
+    const output = resolved.build?.rollupOptions?.output;
+
+    if (Array.isArray(output)) {
+      throw new Error('Expected a single rollup output config for renderer build');
+    }
+
+    expect(output?.manualChunks).toBeTypeOf('function');
+
+    const chunkName = output?.manualChunks?.('node_modules/monaco-editor/esm/vs/editor/editor.api.js');
+    expect(chunkName).toBe('monaco-vendor');
+  });
+
+  it('sets an explicit chunk size warning limit for Monaco worker assets', () => {
+    const resolved = typeof viteConfig === 'function' ? viteConfig({ command: 'build', mode: 'production', isSsrBuild: false, isPreview: false }) : viteConfig;
+    expect(resolved.build?.chunkSizeWarningLimit).toBe(8000);
+  });
+});