Session 47: Name normalization + grade intel + ticker polish (2149 tests)

- Name normalization completed: NICKNAMES table (Matt↔Matthew, Mike↔Michael...)
  resolved in nameKey, parenthetical team-tag strip "(STL)", verified accent-fold
  (Iván/Ivan, José/Jose). Slate strip now DISPLAYS the normalized de-dotted name
  ("AJ Ewing" not "A.J. Ewing") via buildPlayerStripsFromProps.
- Complete MLB VYNDR INTELLIGENCE: mlbGameLogFeatures derives rest_days (days off
  between latest games; 0=B2B) + ab_per_game (usage). buildIntelFields renders
  usage as "X AB/G", rest as B2B/Xd, matchup from bvp_advantage fallback.
- Ticker SCAN dedup: pushTickerItems keeps one SCAN per sport (sport field or
  text-prefix parse for legacy); MOVE/GRADE preserved; cap 50.
- BOMBER threshold prorated for mid-season (hr>=15 strong / >=10 mod) so June
  sluggers classify BOMBER not FLEX/DRIVER.

Backend 2122 -> 2149 tests (+27), 179 suites. Web build clean (exit 0).

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

web/src/lib/playerName.js

@@ -1,12 +1,28 @@
-/* Player-name normalization (Session 46) — frontend copy of
-   src/utils/playerName.js (the Next bundle can't import from src/). Keep the two
-   in sync; tests/unit cross-checks they agree. CommonJS so .tsx imports it AND
+/* Player-name normalization (Session 46, completed Session 47) — frontend copy
+   of src/utils/playerName.js (the Next bundle can't import from src/). Keep the
+   two IDENTICAL; a test cross-checks they agree. CommonJS so .tsx imports it AND
    Jest requires it directly. */
 
 const SUFFIXES = new Set(['jr', 'sr', 'ii', 'iii', 'iv', 'v']);
 
+const NICKNAMES = {
+  matt: 'matthew', mike: 'michael', chris: 'christopher', jake: 'jacob',
+  josh: 'joshua', nick: 'nicholas', nate: 'nathaniel', dan: 'daniel',
+  danny: 'daniel', dave: 'david', rob: 'robert', bob: 'robert', joe: 'joseph',
+  joey: 'joseph', jon: 'jonathan', johnny: 'john', tony: 'anthony',
+  alex: 'alexander', andy: 'andrew', drew: 'andrew', ben: 'benjamin',
+  will: 'william', bill: 'william', billy: 'william', willy: 'william',
+  zach: 'zachary', zack: 'zachary', tom: 'thomas', tommy: 'thomas',
+  ty: 'tyler', ed: 'edward', eddie: 'edward', teddy: 'theodore',
+  charlie: 'charles', chuck: 'charles', rick: 'richard', dick: 'richard',
+  jim: 'james', jimmy: 'james', ray: 'raymond', fred: 'frederick',
+  kenny: 'kenneth', sam: 'samuel', pat: 'patrick', greg: 'gregory',
+  steve: 'steven', tim: 'timothy', frank: 'francis',
+};
+
 function normalizeName(raw) {
   const display = String(raw == null ? '' : raw)
+    .replace(/\s*\([^)]*\)\s*/g, ' ')
     .replace(/\./g, '')
     .replace(/\s+/g, ' ')
     .trim();
@@ -16,7 +32,10 @@ function normalizeName(raw) {
 }
 
 function nameKey(raw) {
-  return normalizeName(raw).key;
+  const { key } = normalizeName(raw);
+  const parts = key.split(/\s+/).filter(Boolean);
+  if (parts.length >= 2 && NICKNAMES[parts[0]]) parts[0] = NICKNAMES[parts[0]];
+  return parts.join(' ');
 }
 
-module.exports = { normalizeName, nameKey, SUFFIXES };
+module.exports = { normalizeName, nameKey, SUFFIXES, NICKNAMES };