fix: locale config so language switcher and nav links work correctly

docs: update author info, mark ZH Book3 translation complete

fix: remove fabricated CLI commands and config formats from Book3

fix: critical ZH safety mistranslation + review fixes

docs: add 5 missing features — Computer Use, /btw, rules/, settings.local, PowerShell (EN+ZH)

chore: remove temporary audit fix plan

fix: rewrite Book3 Ch1/Ch3/Ch4 config formats to match official docs (EN+ZH)

fix: correct keyboard shortcuts, permission modes, and factual errors (EN+ZH)

fix: correct Opus 4.6 pricing from $15/$75 to $5/$25 per MTok

docs: add plan comparison table to Ch.4, fix Team plan pricing in Ch.23

fix: expand appendix sections in sidebar (no collapse)

fix: improve CLAUDE.md template with project-specific examples

fix: remove duplicate language switcher from nav

fix: complete ZH Book 3 translations + fix Book 2 ch18

fix: update homepages — add Book 3 cards, fix hero image overflow, remove bilingual card