feat: complete FIT Labs landing page

- Astro static site with Tailwind CSS v4
- 6 sections: Hero (gradient mesh), About, Capabilities, Differentiator, CTA, Footer
- Sticky navbar with mobile menu
- Scroll reveal animations
- SEO meta tags and structured data
- Docker + nginx config for Coolify deployment

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

.gitignore

@@ -22,3 +22,9 @@ pnpm-debug.log*
 
 # jetbrains setting folder
 .idea/
+
+# superpowers brainstorm
+.superpowers/
+
+# claude
+.claude/