Phone audit called the board 'mostly-empty'. Two causes, both now addressed:
1. Dead images (P0-2, already fixed) → the matchup/team chips render logos now.
2. Degraded edge data. Live snapshot edge_pct is on a broken scale (distinct
values 20/60/100/140 — not a market %), with projection=0 and confidence
35-55%. A real prop-market edge is single-digit, never past ~40%. Leading
the board with '+140%' fabricates a signal (Data Semantics Rule).
Fix: an edge whose |value| > 40 is treated as ABSENT at BOTH layers — the
data layer (flattenToEdgeBoard nulls it, so it can't RANK a fake +140% above a
real +8.4%) and the display (EdgeCell shows '—'). Board falls through to the
grade-rank tiebreak when edges are unreliable. Real edges (≤40) are untouched.
The root cause — edge_pct/projection/confidence degradation — is a BACKEND
grading issue (same family as the P2-9 '45% B' flag), reported separately; this
is the honest frontend guard, not a fix for the data.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The one genuinely-new mobile screen. Design's mobile BOARD is a FLAT edge-ranked
list (all graded props across every game on one list, sorted by edge) — not the
desktop's game-grouped cards. Implemented to the drawing with REAL snapshot data:
- slateAdapter.flattenToEdgeBoard(cards) — pure transform of the assembled
GameCardData[] (grade→game join already done) into ranked rows, edge desc.
STRICT null edge sorts LAST (never 0-coerced to the top — Data Semantics Rule).
Threaded edge_pct through buildPlayerStripsFromProps (was dropped). 6 unit tests.
- MobileEdgeBoard component — Design's exact screen-01 rows: rank (green #1),
player + prop, matchup sub-line with TeamChips + live-dot, tier grade chip,
and the edge% as the one bold mono hero (green +, red −). Ranked opacity ramp
(1 → .55) + green inset border on the top reads. Breadth strip EDGES/AVG CLV/
GAMES — CLV honest '—' (per-slate CLV isn't computed; never fabricated).
- Slate: <768px renders the flat board, ≥768px keeps game cards (same data,
toggled by width). Ungraded slate still shows game cards on phones (no blank).
Built to Design's screen-01 drawing, VISUALLY UNVERIFIED at 390px — the core
mobile screen, top of the master-audit list.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
builtbykev