Session 59: Addendum + work-order 1.6 + Phase 2 + Phase 3 (2352 tests)

Overnight sprint for the Saturday 10 AM ET deploy gate — day one of the
public ledger record locks against freshly posted lines.

Task A — ledger team/opponent (migration 020, applied at 0 rows):
  populated in both write paths from the real feed; opponent only when the
  player's team matches a game participant (never guessed). Roadmap: Phase
  4.5 WNBA ESPN-boxscore settlement (due ~Jul 24) + Phase 5 per-tier
  calibration logged.

Task B — work-order 1.6 CLOSED (canonical player keys):
  - searchPlayer resolves via nameKey; the old matcher deleted accents
    ("Sanchez" with acute -> "snchez") and substring-guessed onto the WRONG
    player (the mismatched last-10 bug). Ambiguous -> null, never guess.
  - Slate JOIN INVARIANT: a graded prop whose player's real team isn't in
    the game is dropped (TB player can't render under MIL@PIT) — locked by
    tests that fail the suite on regression.
  - grades:{sport} TTL 2h -> 6h (expired between 5h cron gaps — the real
    cause of /team "No active props" for slate players).

Task C — Phase 2 slate UX: tabs are THE filter (URL ?sport=, deep-linkable,
  duplicate legacy tablist removed); cards cap at 6 graded props sorted
  A+->F with ALL N READS in-place expander; waiting states show the real
  next pipeline run ("Grades post ~6:00 PM ET").

Task D — Phase 3 mobile P0: root cause of vanished 390px nav was HIDE_ON
  including '/' (landing had zero navigation) — fixed; html/body overflow-x
  contained; GAME LINES collapses to best-line summary + "N BOOKS" expander
  below 640px; venue drops before time/pitchers ever truncate.

Live verification: raw ESPN today STILL returns the Jun 13 NYK@SA Finals
game without a date pin; the pinned fetch returns 0 games, 0 off-date.

Backend 2327 -> 2352 tests (202 suites), web build exit 0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/unit/ledgerService.test.js

@@ -79,6 +79,29 @@ describe('rowsFromSnapshot — the write shape', () => {
     expect(r.game_id).toBe('mlb:2026-07-10:BOS@NYY');
   });
 
+  // Session 59 — team/opponent addendum (migration 020).
+  test('captures team + opponent from the real feed (full-name MLB teams)', () => {
+    const grade = { ...GRADE, team: 'New York Yankees' };
+    const prop = { ...PROP, home_team: 'New York Yankees', away_team: 'Boston Red Sox' };
+    const [r] = rowsFromSnapshot('mlb', [grade], [prop], NOW);
+    expect(r.team).toBe('New York Yankees');
+    expect(r.opponent).toBe('Boston Red Sox');
+  });
+
+  test('opponent is NEVER guessed: team not in the game → opponent null', () => {
+    const grade = { ...GRADE, team: 'Tampa Bay Rays' };
+    const prop = { ...PROP, home_team: 'Milwaukee Brewers', away_team: 'Pittsburgh Pirates' };
+    const [r] = rowsFromSnapshot('mlb', [grade], [prop], NOW);
+    expect(r.team).toBe('Tampa Bay Rays');
+    expect(r.opponent).toBeNull();
+  });
+
+  test('no team from the stats resolve → both null (absent beats wrong)', () => {
+    const [r] = rowsFromSnapshot('mlb', [GRADE], [PROP], NOW);
+    expect(r.team).toBeNull();
+    expect(r.opponent).toBeNull();
+  });
+
   test('refused reads and grade-less entries never become rows', () => {
     const refused = { ...GRADE, grade: null, insufficient_data: true };
     const gradeless = { ...GRADE, grade: undefined };