builtbykev
9b9aab4262
The landing hero was a static Jokic "Example" card with a name-length pick and a
hardcoded A- 73% +6.2% fallback. Now it's deterministic and live:
- heroPropService.pickHeroProp reads the pre-graded snapshot and selects the
prop with the LARGEST |projection - line| gap among A/B grades (conviction,
not noise) — the read where VYNDR disagrees most with the market, the card
that makes a stranger argue. No curation, no grading (reads cache → no API
credits). GET /api/hero-prop (backend) + repointed Next proxy.
- The card shows the disagreement EXPLICITLY: the book's line vs VYNDR's model,
side by side (model in green), with the real grade timestamp ("Graded 2:14
PM"). The EXAMPLE chip is gone.
- Empty slate → the MOST RECENT real graded read (flagged "LATEST READ", real
date). Nothing cached → { available:false } and the card HIDES. No
hand-written fallback — the Jokic card is deleted. Survives a dead night: a
live rule shows tonight's real MLB read, never a phantom July NBA card.
7 service tests lock the rule (max-gap, A/B gate, projection/line required,
empty→recent, hidden, cross-sport). colorContract updated to the new
disagreement display. Change-affected suites green, web build exit 0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>