fix(deps): patch esbuild vulnerability in web-govie

- Vite 5.4.1 → 6.4.1 (brings esbuild 0.25.12, fixes GHSA-67mh-4wv8-2f99)
- vitest 2.1.9 → 3.2.4 (fixes bundled esbuild/vite-node vuln chain)
All vulnerabilities resolved (0 remaining).

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jasperfordesq-ai