Session 35: Design system Phase D — core screens: Grade Result, Slate card, Scan, Terminal, Landing (1839 tests)

VYNDR 2.0 conversion, Phase D (the screens users touch). Frontend-only; zero
backend changes.

- GradeResultCard + ProcessingGrade (the core product moment): intel-surface
  grade hero, signal breakdown, kill conditions, best-book strip, alt ladder;
  sections self-hide when empty.
- lib/gradeAdapter.js maps engine output -> §7 contract and tier-gates content
  (free teaser / analyst kill-conditions / desk alt ladder) so the new card
  doesn't give paid content away.
- Scan result wired to ProcessingGrade->GradeResultCard, preserving scan limits,
  parlay add, reads tracking, and noopener sportsbook deep-links.
- GameCard (Bloomberg best/worst line cells) built + tested.
- Terminal page replaces its stub with a real league-intelligence screen.
- Landing gets the founder-seat ClaimMeter.

Honest scope: live dashboard/Slate swap onto GameCard, scan input -> TerminalInput,
full landing rebuild, and the blurred-paywall polish (Phase G) are deferred to
keep working flows stable.

22 new tests. Backend 1818 -> 1839, 143 suites, zero regressions. Web build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/unit/vyndrAppShell.test.js

@@ -121,7 +121,8 @@ describe('Phase C — layout wiring', () => {
 });
 
 describe('Phase C — route stubs for not-yet-built screens', () => {
-  const stubs = ['terminal', 'compare', 'invite', 'help', 'about', 'notifications'];
+  // /terminal became a real page in Session 35 (Phase D) — no longer a stub.
+  const stubs = ['compare', 'invite', 'help', 'about', 'notifications'];
   it.each(stubs)('/%s has a page that uses the design-system RouteStub', (name) => {
     expect(exists(`app/${name}/page.tsx`)).toBe(true);
     expect(read(`app/${name}/page.tsx`)).toContain('RouteStub');