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>

src/services/adapters/mlbStatsAdapter.js

@@ -129,10 +129,71 @@ async function getBatterVsPitcher(batterId, pitcherId, group = 'hitting') {
   return splits.length > 0 ? (splits[0].stat || null) : null;
 }
 
+const normName = (n) => String(n == null ? '' : n).toLowerCase().replace(/[^a-z0-9]/g, '');
+
+/**
+ * Resolve a player name → MLB person record (Session 43). Pulls the season
+ * player list (cached 24h — heavy but rarely changes) and matches by
+ * normalized full name. Returns { id, fullName, team, teamId, position } or
+ * null. Needed because every other adapter method keys on playerId.
+ */
+async function searchPlayer(name, season = DEFAULT_SEASON) {
+  const target = normName(name);
+  if (!target) return null;
+  const url = `${BASE}/sports/1/players?season=${season}`;
+  const data = await fetchWithCache(url, `mlbstats:players:${season}`, 24 * 3600);
+  const people = (data && Array.isArray(data.people)) ? data.people : [];
+  const hit = people.find((p) => normName(p.fullName) === target)
+    || people.find((p) => normName(p.fullName).includes(target) && target.length >= 6);
+  if (!hit) return null;
+  return {
+    id: hit.id,
+    fullName: hit.fullName ?? name,
+    team: hit.currentTeam?.name ?? null,
+    teamId: hit.currentTeam?.id ?? null,
+    position: hit.primaryPosition?.abbreviation ?? null,
+  };
+}
+
+/**
+ * Name-keyed convenience: resolve the player, then fetch the season stat
+ * object for the right group (pitching for pitchers, hitting otherwise) plus a
+ * recent game log. Returns { found, id, name, team, position, group, season,
+ * last10 } — `season` is the raw MLB stat object, mapped by the caller. Returns
+ * { found: false } on any miss/failure (never throws).
+ */
+async function getPlayerStats(name, season = DEFAULT_SEASON) {
+  try {
+    const person = await searchPlayer(name, season);
+    if (!person) return { found: false };
+    const group = person.position === 'P' ? 'pitching' : 'hitting';
+    const [seasonStat, log] = await Promise.all([
+      getSeasonAverages(person.id, season, group),
+      getPlayerGameLog(person.id, season, group),
+    ]);
+    if (!seasonStat) return { found: false, id: person.id, name: person.fullName, team: person.team, position: person.position, group };
+    return {
+      found: true,
+      id: person.id,
+      name: person.fullName,
+      team: person.team,
+      position: person.position,
+      group,
+      season: seasonStat,
+      last10: (log || []).slice(-10),
+    };
+  } catch (err) {
+    console.warn('[mlbStats] getPlayerStats failed:', name, err.message);
+    return { found: false };
+  }
+}
+
 module.exports = {
   getScheduleWithPitchers,
   getPlayerGameLog,
   getSeasonAverages,
   getBatterVsPitcher,
-  __internals: { BASE, TTL, extractSplits, ymd, DEFAULT_SEASON },
+  searchPlayer,
+  getPlayerStats,
+  __internals: { BASE, TTL, extractSplits, ymd, DEFAULT_SEASON, normName },
 };