* docs: streamline quickstart
* feat(docs): simplify quickstart code-block styling
Remove the fake terminal chrome (traffic lights + zsh header) and language
pill from bash blocks, and the teal left-accent from output blocks. Bash
fences now render as minimal cards; text fences route to a muted "output"
preview. Make detectLanguage recursive and enable addLanguageClass in
source.config.ts so Shiki tokens carry through to the renderer. Switch
Shiki themes to min-light / github-dark and disable monospace ligatures so
flag pairs like --agents keep a visible space.
* fix(docs): restore quickstart CI snippets
The three page-level buttons (Copy MD, View MD, Copy MDX) were broken
because the fetch URL missed the /ktx basePath. Replace with a single
"Copy as Markdown" button that strips frontmatter from the MDX source
already available client-side — no fetch needed. Drop the .md link
since agents discover markdown URLs through llms.txt and content
negotiation.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>