Session 54: Audit cleanup — name edges + polish (2255 tests)

P1 name edge cases (BOTH playerName.js copies, kept identical):
- normalizeName strips hyphens (display+key): "Jung-hoo Lee" === "Jung Hoo Lee".
- nameKey strips single-letter MIDDLE tokens: "Josh H Smith" === "Josh Smith"
  (keeps first+last; real middle names + collapsed initials untouched).
- richie -> richard added to NICKNAMES.

P2 polish:
- Team Hub names normalized at the source (teamService.getTeamHub) so
  "J.C. Escarra" renders as "JC Escarra" like the dashboard.
- snapshotService dedup keeps the highest-confidence GRADE but the richest
  DISPLAY (accented "José" over "Jose") so prop rows match the pitcher line.
- correlationWarning names the game: "2 legs from the same game (NYY @ BOS)".

Backend 2246 -> 2255 tests (+9), 194 suites. Web build clean (exit 0).

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

src/services/parlayService.js

@@ -296,7 +296,10 @@ function correlationWarning(legs) {
   if (worst) return `⚠ ${worst.count} legs from ${worst.team} — high correlation`;
   for (let i = 0; i < list.length; i += 1) {
     for (let j = i + 1; j < list.length; j += 1) {
-      if (sameVal(list[i].game, list[j].game)) return '⚠ 2 legs from the same game — correlated';
+      if (sameVal(list[i].game, list[j].game)) {
+        const g = list[i].game;
+        return g ? `⚠ 2 legs from the same game (${g}) — correlated` : '⚠ 2 legs from the same game — correlated';
+      }
     }
   }
   return null;