- Delete docs-site/ (superseded by web/app/docs)
- Add posthog-js with Vercel reverse proxy at /cdata to bypass adblockers
- Track pageviews (SPA-aware), download clicks (hero/navbar/mobile_drawer),
and GitHub link clicks (hero/navbar/mobile_drawer/footer)
ThemeToggle was fixed-positioned over the hamburger menu on mobile.
Move it into SiteHeader so both controls sit together. Add
whitespace-nowrap to hero Download/GitHub buttons and flex-wrap
to their container so they don't break across lines on narrow screens.