Add /skill.md endpoint and agent install section on homepage
- GET /skill.md — installable skill file for coding agents, includes
full endpoint reference, URL parsing table, and usage patterns
- Homepage: "Add to your coding agent" section with tabbed UI for
Claude Code (/bsky slash command), CLAUDE.md, Cursor (.cursorrules),
Windsurf (.windsurfrules), GitHub Copilot, and raw copy
- Each tab shows a one-line curl install command with copy button
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>