- Restructured translation guide with clean markdown layout and tables.
- Removed mermaid sequence diagram to improve text-based clarity.
- Audited steps for contributing new language keys.
- Added pure Node.js dynamic i18n static site generator (build.js).
- Structured locales for English, German, French, Spanish, Brazilian Portuguese, and Russian.
- Replaced two-state toggle with premium glassmorphic language select dropdown.
- Integrated robust segment-based locale routing with safe dynamic fallbacks for legal and invite pages.
- Audited Core Web Vitals (LCP preloads, CLS dimensions) and SEO structures (robots, sitemap).
- Added dedicated Localization section to README and created contributor TRANSLATION guide.
Timo