fix: suppress Vite chunk size warning that clutters test output

The JS bundle is ~1MB which is fine for an embedded admin UI.
Raise the warning limit to 1100KB.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/vite.config.ts

@@ -60,6 +60,7 @@ export default defineConfig(() => {
 		build: {
 			outDir: "dist",
 			emptyOutDir: true,
+			chunkSizeWarningLimit: 1100,
 		},
 	};
 });