P2-10: ledger read-card density — tighter padding/margins (3-4 per phone screen)

Phone audit: read cards were huge, only 1-2 fit per screen. Compressed the
vertical spacing — article padding 16->12, header margin 8->5, name 15->14px,
ladder-rungs margin 10->8, book/date line 12->8.

Kept the archetype showDesc: it renders INLINE (same row as the badge), so it
adds zero vertical height — dropping it wouldn't help density and would break
the ds5 design lock ("the badge shows its one-line meaning where it leads").
Locked the density in vyndrParityQA (P2-10).

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

tests/unit/vyndrParityQA.test.js

@@ -298,3 +298,14 @@ describe('P1-8 — Compare verdict is time-honest (form, not a phantom game)', (
     expect(compare).toMatch(/on current form/i);
   });
 });
+
+// ── P2-10 lock — ledger read cards are dense (3-4 per phone screen) ──────────
+describe('P2-10 — ledger cards are tightened for density', () => {
+  const ledger = read('app/ledger/page.tsx');
+  it('the read card uses tight padding for density (3-4 per phone screen)', () => {
+    // the LedgerCard <article> padding dropped 16 -> 12 (showDesc is INLINE, so
+    // density comes from padding/margins, not from stripping the archetype meaning)
+    expect(ledger).toMatch(/animate-fade-up stagger-[^]*?padding: 12 \}\}>/);
+    expect(ledger).toMatch(/ArchetypeBadge[^]*?showDesc/); // meaning preserved (inline, no height cost)
+  });
+});

web/src/app/ledger/page.tsx

@@ -333,8 +333,8 @@ function LedgerCard({ row, index, ladder }: { row: LedgerRow; index: number; lad
   const rungs = Array.isArray(ladder) ? ladder : [row];
   const isLadder = rungs.length > 1;
   return (
-    <article className={`surface diagonal-cut animate-fade-up stagger-${(index % 6) + 1}`} style={{ padding: 16 }}>
+    <article className={`surface diagonal-cut animate-fade-up stagger-${(index % 6) + 1}`} style={{ padding: 12 }}>
-      <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start', marginBottom: 8 }}>
+      <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start', marginBottom: 5 }}>
         <span className="mono" style={{ fontSize: 10, fontWeight: 700, padding: '2px 8px', borderRadius: 999, background: `${sportColor}1F`, color: sportColor }}>
           {row.sport.toUpperCase()}
         </span>
@@ -348,10 +348,13 @@ function LedgerCard({ row, index, ladder }: { row: LedgerRow; index: number; lad
           <GradePill grade={row.grade} />
         </span>
       </div>
-      <h3 style={{ fontSize: 15, fontWeight: 600, marginBottom: 2 }}>{row.player_name}</h3>
+      <h3 style={{ fontSize: 14, fontWeight: 600, marginBottom: 2 }}>{row.player_name}</h3>
-      {/* Part 5 — the archetype glyph+chip, propagated (self-hides when absent). */}
+      {/* Part 5 — the archetype glyph+chip, propagated (self-hides when absent).
+          showDesc renders INLINE (same row), so it costs no vertical height —
+          kept for its one-line meaning. P2-10 density comes from the tighter
+          padding/margins, not from stripping this. */}
       {row.archetype && (
-        <div style={{ marginBottom: 6 }}>
+        <div style={{ marginBottom: 4 }}>
           <ArchetypeBadge archetype={row.archetype} size="sm" showDesc />
         </div>
       )}
@@ -362,7 +365,7 @@ function LedgerCard({ row, index, ladder }: { row: LedgerRow; index: number; lad
           <p className="mono" style={{ fontSize: 12, color: 'var(--text-secondary)', textTransform: 'capitalize', marginBottom: 6 }}>
             {row.stat.replace(/_/g, ' ')} <span style={{ color: 'var(--text-tertiary)' }}>· {rungs.length} lines</span>
           </p>
-          <div style={{ display: 'flex', flexWrap: 'wrap', gap: 6, marginBottom: 10 }}>
+          <div style={{ display: 'flex', flexWrap: 'wrap', gap: 6, marginBottom: 8 }}>
             {rungs.map((rung) => (
               <span key={rung.id} className="mono" style={{ fontSize: 10.5, display: 'inline-flex', alignItems: 'center', gap: 5, padding: '3px 8px', borderRadius: 6, background: 'var(--bg-2)', border: '1px solid var(--border)' }}>
                 {rung.side}{rung.line}
@@ -376,7 +379,7 @@ function LedgerCard({ row, index, ladder }: { row: LedgerRow; index: number; lad
           {row.side} {row.line} {row.stat.replace(/_/g, ' ')}
         </p>
       )}
-      <p className="mono" style={{ fontSize: 11, color: 'var(--text-tertiary)', marginBottom: 12 }}>
+      <p className="mono" style={{ fontSize: 11, color: 'var(--text-tertiary)', marginBottom: 8 }}>
         {row.book ? <BookWordmark book={row.book} size={11} /> : '—'}{row.locked_odds ? ` · ${row.locked_odds}` : ''} · {row.game_date}
         {/* model_value is MODEL output — always labeled, never blended with market numbers. */}
         {row.model_value != null && <span> · MODEL {row.model_value}</span>}