Landing page changes:
- Removed entire (auth) directory — landing doesn't need login/signup
- Removed auth buttons (Masuk/Daftar) from header navigation
- Hackathon page now fetches teams + winners from real API
- Roadmap page now fetches from /v1/landing/cms/roadmap API with
real-time voting via POST /roadmap/vote/{id}
- Deleted dummy JSON files: events.json, testimonials.json, hackathons.json
- Kept static config: hero-content, hero-stats, navigations, socials
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
