docs(web): restore skills detail copy

[code-yeongyu]

Summary

• Restore the detailed Skills docs index and highlight framing that was lost from the previous docs iteration
• Re-add lsp-setup, rules, and comment-checker descriptions plus skill location/install copy
• Regenerate the compiled docs content

QA

• pnpm run lint
• pnpm run type-check
• pnpm run build
• NODE_OPTIONS=--no-deprecation pnpm exec playwright test e2e/docs.spec.ts
• Manual Chrome QA for /docs#skills at 1280, 768, and 375 widths: anchor, restored text, no console errors, no horizontal overflow

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Summary by cubic

Restored the detailed Skills docs with a clear index and highlights to make discovery and activation cues obvious. Re-added lsp-setup, rules, and comment-checker; updated “Where skills live” with new paths and an install snippet; and regenerated the compiled docs and TOC.

^{Written for commit fcd296c. Summary will update on new commits.}

[github-actions]

Thanks for the PR! Changes to LazyCodex land through oh-my-openagent — could you open this against omo-codex over there instead? PRs in this repository can't be merged.

If you're working with a coding agent, prompt it like this:

I opened #73 ("docs(web): restore skills detail copy") against code-yeongyu/lazycodex, but changes there land through code-yeongyu/oh-my-openagent, where the Codex implementation lives under packages/omo-codex. Read my original PR, then open an equivalent PR against code-yeongyu/oh-my-openagent. In the new PR body, link the original PR (#73), explain that it was first opened against lazycodex, and describe in detail what that PR changed and why.