- Add public/robots.txt (allow all, disallow /admin and /login, reference sitemap)
- Add public/sitemap.xml (5 public routes with change frequencies and priorities)
- Fix heading hierarchy: h2 -> h1 on about, schedule, events, contact pages
- Remove dead footer href="#" links:
- Volunteer/Corporate Giving/Planned Giving -> routerLink to /contact with subject query param
- Social media links -> conditional on config().social_* fields (hidden when empty)
- Fix logo ARIA: add aria-hidden="true" to decorative logo in about page divider
- Add social_facebook, social_twitter, social_instagram, social_youtube to:
- StationConfig DB model + startup migration
- StationConfigResponse and StationConfigUpdate schemas
- Frontend StationConfig TypeScript interface
- Fix events "Learn More" dead link -> routerLink to /contact
