Session 46: Grade card intel + name normalization + pitchers (2122 tests)

Three focused P1 fixes on the Session-45 snapshot model.

- Grade card intel ROOT CAUSE: gameLogService is NBA/WNBA-only (offline Python),
  so MLB props never got l5_avg/l20_avg and buildIntelFields returned {}. Wired
  MLB game logs into featureCache.gameLogFeatures via mlbStatsAdapter.getPlayerStats
  (pure mlbGameLogFeatures + MLB stat_type->field map). buildIntelFields gained
  playerStats/projection fallbacks for partial intel.
- Player name normalization: src/utils/playerName.js (+ web/src/lib copy):
  normalizeName -> {display,key}. Strips periods, de-dots suffix, accent-folds
  the key. Applied in snapshotService grouping, slateAdapter grade index +
  player-strip merge (variants collapse, longest name shown), and
  playerIntelService. "A.J. Ewing"/"AJ Ewing" + "Jazz Chisholm"/"Jr." now merge.
- MLB starting pitchers: new GET /api/schedule/:sport/pitchers (probablePitchers
  service wrapping mlbStatsAdapter.getScheduleWithPitchers + best-effort ERA).
  Slate fetches it, builds a team->pitcher map (full name + mascot match),
  attaches pitchers to MLB GameCardData. + Next proxy.

Backend 2100 -> 2122 tests (+22), 176 suites. Web build clean (exit 0).

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

web/src/app/api/schedule/[sport]/pitchers/route.ts

@@ -0,0 +1,25 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+export const dynamic = 'force-dynamic';
+
+const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:3000';
+
+/**
+ * MLB probable-pitchers proxy (Session 46) — forwards
+ * GET /api/schedule/:sport/pitchers to Express (statsapi.mlb.com starters).
+ */
+export async function GET(req: NextRequest, { params }: { params: Promise<{ sport: string }> }) {
+  const { sport } = await params;
+  const sportLc = String(sport || '').toLowerCase();
+  const qs = req.nextUrl.search;
+  try {
+    const upstream = await fetch(`${BACKEND_URL}/api/schedule/${encodeURIComponent(sportLc)}/pitchers${qs}`, {
+      method: 'GET',
+      headers: { Accept: 'application/json' },
+    });
+    const data = await upstream.json().catch(() => ({ games: [] }));
+    return NextResponse.json(data, { status: upstream.ok ? 200 : upstream.status });
+  } catch {
+    return NextResponse.json({ sport: sportLc, games: [] }, { status: 200 });
+  }
+}