Session 43: Data pipeline + audit fixes + depth chart foundation (2045 tests)

P0 fixes + wiring real data into the S42 Player Intelligence architecture.

- P0 dropdown z-index: the nav's backdrop-filter stacking context let the
  Ticker/HeartbeatBar paint over the avatar/More dropdowns and eat clicks.
  nav now position:relative zIndex:2; menus zIndex:100. Avatar Settings ->
  /settings.
- Real MLB stats: mlbStatsAdapter.searchPlayer + getPlayerStats (name->id->
  season+gamelog). playerIntelService.resolvePlayerStats normalizes into the
  archetype classifier; getPlayerIntel returns found:true + real season +
  archetype classified from real stats. NBA via nbaStatsClient (degrades).
- Game cards: slateAdapter.groupPropsByPlayer (playerStrips, name once) +
  mapPitchers (MLB probables), folded into mapScheduleToGameCards. Legacy
  GameCard line grid renders BookChip (brand colors) not grey text.
- Grade card intel: analyzeViaEngine1.buildIntelFields computes stat-context +
  form/usage/matchup/rest from the existing feature vector (zero extra I/O);
  gradeAdapter lights up the card sections. Archetype deferred (needs season
  line at grade time).
- Depth chart foundation: depthChartService (getLineup/getDepthChart/
  getCascadeProjection) + /api/stats/lineup|depth|cascade, graceful + injectable.
- Mobile: player hero name overflow-wrap + 24px on <=640px (was clipping).

Backend 2011 -> 2045 tests (+34), 163 suites. Web build clean (exit 0).

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

tests/unit/slateAdapterStrips.test.js

@@ -0,0 +1,73 @@
+// Session 43 — slate adapter: player-grouped strips + MLB pitchers + BookChip.
+
+const fs = require('fs');
+const path = require('path');
+const WEB = path.join(__dirname, '..', '..', 'web', 'src');
+const adapter = require('../../web/src/lib/slateAdapter');
+
+describe('groupPropsByPlayer', () => {
+  it('groups props so each player appears once (name not repeated)', () => {
+    const out = adapter.groupPropsByPlayer([
+      { player: 'Austin Riley', team: 'ATL', stat: 'Hits', line: 1.5, side: 'Over', grade: 'A' },
+      { player: 'Austin Riley', team: 'ATL', stat: 'Total Bases', line: 1.5, side: 'Over', grade: 'B+' },
+      { player: 'Bryce Harper', team: 'PHI', stat: 'TB', line: 1.5, side: 'Over', grade: 'A' },
+    ]);
+    expect(out).toHaveLength(2);
+    expect(out[0].player).toBe('Austin Riley');
+    expect(out[0].props).toHaveLength(2);
+    expect(out[0].props[0].side).toBe('O');
+    expect(out[1].player).toBe('Bryce Harper');
+  });
+
+  it('attaches an archetype when a lookup is provided', () => {
+    const out = adapter.groupPropsByPlayer(
+      [{ player: 'Riley', stat: 'Hits', line: 1.5, side: 'Over', grade: 'A' }],
+      () => ({ primary: 'POWER PULL' }),
+    );
+    expect(out[0].archetype).toEqual({ primary: 'POWER PULL' });
+  });
+
+  it('returns [] for empty / non-array input', () => {
+    expect(adapter.groupPropsByPlayer(null)).toEqual([]);
+    expect(adapter.groupPropsByPlayer([])).toEqual([]);
+  });
+});
+
+describe('mapPitchers', () => {
+  it('maps MLB probable pitchers to the GameCard shape', () => {
+    const p = adapter.mapPitchers({
+      sport: 'mlb',
+      away: { probablePitcher: { name: 'Spencer Strider' } },
+      home: { probablePitcher: { name: 'Zack Wheeler' } },
+      awayPitcherERA: 3.21, homePitcherERA: 2.89,
+    });
+    expect(p.away.name).toBe('Spencer Strider');
+    expect(p.away.era).toBe('3.21');
+    expect(p.home.name).toBe('Zack Wheeler');
+  });
+  it('returns undefined for non-MLB or no probables', () => {
+    expect(adapter.mapPitchers({ sport: 'nba' })).toBeUndefined();
+    expect(adapter.mapPitchers({ sport: 'mlb' })).toBeUndefined();
+  });
+});
+
+describe('mapScheduleToGameCards includes the new fields', () => {
+  it('builds playerStrips + pitchers on each card', () => {
+    const cards = adapter.mapScheduleToGameCards(
+      [{ id: 'ATL-PHI', sport: 'mlb', awayTeam: { abbreviation: 'ATL', name: 'Braves' }, homeTeam: { abbreviation: 'PHI', name: 'Phillies' }, away: { probablePitcher: { name: 'Strider' } }, home: { probablePitcher: { name: 'Wheeler' } } }],
+      {},
+      [],
+      [{ player: 'Austin Riley', team: 'ATL', stat: 'Hits', line: 1.5, grade: 'A', side: 'Over' }],
+    );
+    expect(cards[0].playerStrips[0].player).toBe('Austin Riley');
+    expect(cards[0].pitchers.away.name).toBe('Strider');
+  });
+});
+
+describe('legacy GameCard uses BookChip (brand colors)', () => {
+  it('renders book chips instead of plain grey text', () => {
+    const src = fs.readFileSync(path.join(WEB, 'components', 'GameCard.tsx'), 'utf8');
+    expect(src).toContain('BookChip');
+    expect(src).toContain('book={r.book}');
+  });
+});