style: copyright 2025 → 2025–2026

style: «AI-разработки» → «AI-инженера» в лейбле редбука

style: «Глава 1.» → «Глава первая.» в заголовке страницы

fix: switch static HTML and JS to no-cache for instant deploy visibility

fix: update citizenship page status card when modal choice is made

feat: 3-font system, dark theme audit, Instrument Serif for timeline labels

fix: исправить 7 опечаток в первой главе редбука

feat: add OG/Twitter preview image for redbook TOC page

fix: handle missing refs/ dir in Docker build for OG images

feat: add OG/Twitter preview image for redbook chapters

fix: redbook nginx rewrites and chapter label cleanup

fix: update citizenship flag instantly after modal selection

feat: extract hardcoded content into editable JSON + build pipeline

feat: citizenship-aware analytics, sitemap, bot-aware redirects

feat: add redbook (AI development book) with markdown-to-HTML pipeline

docs: add memory storage policy to CLAUDE.md

chore: add CLAUDE.md with project context and deployment instructions

fix: add base href to talk HTML to fix images on URLs without trailing slash

fix: redirect talks URL without trailing slash to prevent broken images

feat: add OG/Twitter meta tags, Telegram hook and home button to chat-vs-file