feat: the CRT demo is now a 1:1 miniature of modkit

Deep-dived the real frontend and rebuilt every scene to match it:

- chrome: the modkit pixel wordmark, Queue/Automod/Analytics/
  Integrations nav with tabular counts, the search-reports input,
  theme toggle and avatar — on the app's zinc palette, resolved from
  its oklch tokens
- Queue: the Moderation header and subtitle, all four DitherStatCards
  (Pending/Resolved today/Automod 24h/Banned, correct colors, deltas
  with invert semantics, aura-bloomed dither charts flush at the card
  foot), the Pending/Log toggle, and real flagged rows from the mock
  data with reason pills and severity dots
- Automod: the rule list with sparklines, 24h hit counts, and
  miniaturized shadcn switches (disabled rule renders grey)
- Analytics: the focused-metric header (big mono value + delta +
  range) over the full-bleed dither chart, with metric mini-cards

Tour, cursor takeover, and idle-resume mechanics unchanged.

Author: ripgrim