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>

CLAUDE.md

@@ -355,6 +355,37 @@ Built from the Claude Design "VYNDR Player Intelligence" bundle.
 - **Components added to the barrel**: ArchetypeBadge, ArchetypeBlend, StatStrip,
   BookChip (`@/components/vyndr`). Book brand map = `web/src/lib/books.js`.
 
+## Data Pipeline Wiring (Session 43 — non-obvious)
+- **Dropdown z-index P0** — the `<nav>` uses `backdrop-filter`, which creates a
+  stacking context. The living-layer bars (`Ticker`, `HeartbeatBar`) render as
+  siblings AFTER it, so dropdowns that overflow below the 60px nav got covered.
+  The nav carries `position:relative; zIndex:2` to float above them — don't
+  remove it, and keep dropdown menus at `zIndex:100`.
+- **MLB real stats** — `mlbStatsAdapter` is id-keyed; Session 43 added
+  `searchPlayer(name)` (resolves via the cached season player list) +
+  `getPlayerStats(name)`. `playerIntelService.resolvePlayerStats(name, sport)`
+  normalizes the raw statsapi.mlb.com object into the archetype classifier's
+  input shape + display rows. `getPlayerIntel` classifies from REAL stats now.
+  Adapters are injectable (`opts.mlbAdapter`/`opts.resolveStats`) — tests never
+  hit the network. NBA/WNBA uses `nbaStatsClient` (Python service, usually
+  offline in prod → degrades to `found:false`, NOT an error).
+- **Grade-card intel** — `analyzeViaEngine1.buildIntelFields(features)` computes
+  stat-context + form/usage/matchup/rest from the EXISTING feature vector (no
+  extra I/O) and `Object.assign`s them onto the legacy result. `gradeAdapter`
+  maps them into the card. Archetype is deliberately NOT attached at grade time
+  (the per-prop feature vector has no multi-stat season line) — that strip waits
+  for the Session-44 pipeline. Keep grade-time I/O at zero (slate grades in tight
+  loops; this is why archetype isn't fetched per-prop).
+- **slateAdapter** now emits `playerStrips` (`groupPropsByPlayer`) + `pitchers`
+  (`mapPitchers`) on every card. The LIVE slate still uses the legacy
+  `components/GameCard` (which ignores those + renders `BookChip` in its line
+  grid); the full swap to `vyndr/GameCard` is still pending (needs inline grading
+  ported). `mapPitchers` returns undefined for non-MLB / no probables.
+- **depthChartService** (`getLineup`/`getDepthChart`/`getCascadeProjection`) +
+  `/api/stats/lineup|depth|cascade` are the foundation; all graceful + injectable.
+  `matchesTeam` must guard empty names (`t.includes('')` is always true) — and
+  the schedule `find` checks `g.home`/`g.away`, not the game object.
+
 ## Active Skills
 - vyndr-voice (all user-facing output)
 - prop-analysis (grading methodology)