Upgrade the MemoPop AI splash with three-mode theming, context-v rollup, peer-aware discovery, and Pagefind
The current memopop-site shipped fast but pre-dates the conventions astro-knots/splash settled into a few days later. This plan brings memopop-site up to that bar — three-mode toggle on a two-tier token system, a context-v archive alongside the existing changelog, peer-directory rollup that walks the monorepo (apps/* and packages/*) instead of children, and Pagefind across both archives — without touching the design language. Implementation is free to invent its own visual identity; this plan only locks down the mechanics.