launched the canonical VibeSkill prototype

Launched the current VibeSkill prototype on Cloudflare Pages: https://vibeskill-prototype.pages.dev/

This is different from the earlier Gemini mockup project. The important work here was turning the generated frontend into a more faithful skill-map prototype. Gemini provided the initial interface and interaction scaffolding, while Codex was used to refine the structure: the 16 domains stayed intact, placeholder child branches were replaced with canonical first-level skill branches, child expansion spacing was corrected, and the sidebar was reshaped into a denser documentation and evidence-oriented skill dossier.

It is still a prototype, but it now behaves much more like the actual product idea and less like a visual concept. Next step is to move the approved prototype changes back into the working branch and then update the surrounding docs and context files so the internal project memory matches what is now live.