feat(ui): app UX/UI redesign + marketing landing site
App (Vue SPA) — 100% presentational, global design-token rebuild in
style.css + polished App/Login/Chat/MyBoard/Personas/Setup/Training.
No logic/API/route/i18n changes (verified: build clean, 4/4 vitest,
independent review PASS 5/5).
website/ — new self-contained static marketing landing site (TH-primary
+ EN toggle, CSS chat mockup, Hallmark theme), verified responsive at
320-768 (no horizontal scroll). Pricing uses placeholders pending owner.
Docs: engineering-log 2026-08-19 + HANDOFF updated.
NOT pushed (push to main auto-deploys to EasyPanel production;
operator approval + JWT_SECRET check required before deploy).
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