docs: import TRM design handoff + defer adoption to phase 3.8

A design handoff bundle generated by Claude Design (claude.ai/design)
on 2026-05-02. Defines the Bloomberg/F1-pit-wall aesthetic for TRM:
- ink-on-paper base + race-flag red accent (#E8412B)
- square-edged everything, sharp printed offset shadows
- mono numerics (JetBrains Mono) for any changing value
- Goldplay (real licensed font, three weights in bundle fonts/)
- four surfaces designed: dashboard / leaderboard / mobile / marketing
  (SPA scope is the first two)

The bundle is committed in-tree at TRM_Design_System-handoff/ so 3.8
has the full source material when it picks the work up. Includes:
- Top-level + project READMEs (the design spec)
- chats/chat1.md (intent + iteration history)
- colors_and_type.css (token set, drop-in for Tailwind 4 @theme)
- fonts/ (Goldplay regular/semibold/bold)
- ui_kits/ (HTML prototypes per surface)
- preview/ (per-token visual reference cards)

Updated phase-3-dogfood-readiness/README.md task 3.8 row to point at
the bundle and document the recommended approach (retheme shadcn via
CSS variable overrides + Tailwind 4 @theme, not replace).

Why deferred: foundational tokens are non-blocking for Phase 1 (login
+ placeholder home) and Phase 2 (live map without chrome). Applying
them now would either delay dogfood-blocking work or land partial
styling that gets reworked when 3.8 lands the full pass.

TRM_Design_System-handoff/trm-design-system/project/ui_kits/leaderboard/Ticker.jsx

@@ -0,0 +1,20 @@
+function Ticker({ items }) {
+  return (
+    <div style={{ borderTop: '1px solid var(--night-line)', background: 'var(--night-2)', padding: '10px 0', overflow: 'hidden', whiteSpace: 'nowrap' }}>
+      <div style={{ display: 'inline-flex', gap: 32, animation: 'tickerScroll 40s linear infinite', paddingLeft: '100%' }}>
+        {[...items, ...items].map((it, i) => (
+          <span key={i} style={{ fontFamily: 'var(--font-mono)', fontSize: 13, color: 'var(--night-fg-2)', display: 'inline-flex', gap: 8, alignItems: 'center' }}>
+            <span style={{ color: 'var(--flag)' }}>▸</span>
+            <span style={{ color: 'var(--night-fg-3)' }}>{it.cp}</span>
+            <span style={{ color: 'var(--night-fg)', fontWeight: 600 }}>BIB {it.bib}</span>
+            <span style={{ color: 'var(--night-fg)' }}>{it.name}</span>
+            <span style={{ color: 'var(--night-fg-3)' }}>{it.time}</span>
+            <span style={{ color: it.delta.startsWith('-') ? 'var(--green)' : 'var(--flag)' }}>{it.delta}</span>
+          </span>
+        ))}
+      </div>
+      <style>{`@keyframes tickerScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }`}</style>
+    </div>
+  );
+}
+window.Ticker = Ticker;