Session 57: Phase 0 — Kill the Lies (2309 tests)

Work-order Phase 0 (Jul 10 live audit): every fabricated UI element deleted
or rewired to real data. Deletion sprint — no new product features.

0.1 Fake NBA game: root cause was scheduleService fetching the ESPN
    scoreboard with no ?dates= param or date filter — off-season ESPN
    returns the NEAREST slate (Jun 13 NYK@SA Finals rendered as tonight).
    Now pinned to the requested ET date + defensive filter; undated events
    dropped. Honest month-aware per-sport empty states (lib/emptyState.js).
0.2 Fake header counters: liveTick stripped to a bare 1s pulse (the
    auto-incrementing "247 graded", sin-driven brain-%, aPlus/cascades are
    dead). New GET /api/snapshot/summary (cache-only, before /:sport) +
    Next proxy; HeartbeatBar shows the real graded count and SYNC =
    elapsed since the last pipeline run (amber past 5 min).
0.3 Ticker: hardcoded fallback items deleted (real snapshot exhaust only);
    MOVE kept — computeLineDeltas is real movement. <4 real items → no
    ticker; bar publishes --ticker-h so the fixed header collapses cleanly.
0.4 /terminal retired: route redirects to /dashboard; VVI/injury-wire/
    leaders layouts preserved unrouted as §12 content-engine templates.
    Nav PRIMARY = Slate/Scan/Ledger; BottomTabBar Terminal→Explore; PWA
    shortcut Terminal→Ledger; #terminal alias → /dashboard.
0.5 ›Query nav pill deleted (duplicate /scan link).

Backend 2289 → 2309 tests (199 suites), web build exit 0.
Spec: specs/phase-0-kill-the-lies.md. Next: work-order Phase 1 (ledger
persistence + settlement).

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

web/src/lib/emptyState.js

@@ -0,0 +1,49 @@
+/* ============================================================
+   Session 57 (Phase 0) — honest per-sport empty-slate copy (spec §6).
+
+   A sport with zero games must say WHY instead of showing a fixture game or
+   passive "waiting" language. Month-aware: an off-season sport names its
+   return window; an in-season sport calls it an off-day. CommonJS so both the
+   .tsx surfaces (allowJs) and the plain-JS Jest suite can load it.
+   ============================================================ */
+
+// Off-season months per sport (0-indexed). Deliberately conservative: only
+// months where the league is CERTAINLY dark, so an early/late season edge day
+// reads as an off-day rather than falsely claiming the league is done.
+const OFF_SEASON = {
+  nba: { months: [6, 7, 8], returns: 'October' },        // Jul–Sep
+  wnba: { months: [10, 11, 0, 1, 2, 3], returns: 'May' }, // Nov–Apr
+  mlb: { months: [11, 0, 1], returns: 'spring' },         // Dec–Feb
+};
+
+const LABEL = { nba: 'NBA', wnba: 'WNBA', mlb: 'MLB', soccer: 'Soccer' };
+
+/**
+ * Copy for an empty slate. `sport` is lowercase ('nba'|'wnba'|'mlb'|'soccer'
+ * |'all'); anything else falls back to the generic line.
+ * Returns { title, body }.
+ */
+function emptyStateCopy(sport, date = new Date()) {
+  const sp = String(sport || '').toLowerCase();
+  const month = date.getMonth();
+
+  const off = OFF_SEASON[sp];
+  if (off && off.months.includes(month)) {
+    return {
+      title: `${LABEL[sp]} returns in ${off.returns}.`,
+      body: 'The offseason board is dark. The model is running the live slates in the meantime.',
+    };
+  }
+  if (LABEL[sp]) {
+    return {
+      title: `No ${LABEL[sp]} games today.`,
+      body: 'Off-day. The board refills with the next slate.',
+    };
+  }
+  return {
+    title: 'No games on the board today.',
+    body: 'The board refills with the next slate.',
+  };
+}
+
+module.exports = { emptyStateCopy, OFF_SEASON };