S5 (a1): prop viability — lineups, injury wire, date navigation

- lineupService: statsapi hydrate=lineups (live shape verified) →
  CONFIRMED (batting slot) / NOT_IN (team posted without the player) /
  PROJECTED (not posted). 10-min cache, pure parser, injectable.
- NOT_IN visibly KILLS the grade on the slate: struck through + NOT IN
  LINEUP chip, parlay/book actions suppressed. The locked ledger read is
  untouched — honesty is showing the read is dead, not deleting it.
- injuryService: ESPN injuries feed → OUT/GTD/PROB chips (unknown status
  → no chip, never invented). Chips on slate strips via ViabilityChips.
- Date navigation on the Slate: YESTERDAY (results surface — finals +
  THE SETTLE panel of that date's settled reads w/ outcome + CLV chips,
  via new ?date= filter on /api/ledger/model) / TODAY / TOMORROW
  (schedule until lines post). Odds/grades/pitcher layers are TODAY's
  and never fake other dates; 60s poll only refreshes today.
- Routes /api/schedule/:sport/lineups + /injuries + Next proxies.

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

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

@@ -0,0 +1,19 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+export const dynamic = 'force-dynamic';
+
+const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:3000';
+
+/** Injury-wire proxy (Session 64 / A1-S5). */
+export async function GET(req: NextRequest, { params }: { params: Promise<{ sport: string }> }) {
+  const { sport } = await params;
+  try {
+    const upstream = await fetch(`${BACKEND_URL}/api/schedule/${encodeURIComponent(String(sport).toLowerCase())}/injuries`, {
+      headers: { Accept: 'application/json' },
+    });
+    const data = await upstream.json().catch(() => ({ byPlayer: {} }));
+    return NextResponse.json(data, { status: upstream.ok ? 200 : upstream.status });
+  } catch {
+    return NextResponse.json({ byPlayer: {} }, { status: 200 });
+  }
+}

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

@@ -0,0 +1,19 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+export const dynamic = 'force-dynamic';
+
+const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:3000';
+
+/** Lineup-confirmation proxy (Session 64 / A1-S5). */
+export async function GET(req: NextRequest, { params }: { params: Promise<{ sport: string }> }) {
+  const { sport } = await params;
+  try {
+    const upstream = await fetch(`${BACKEND_URL}/api/schedule/${encodeURIComponent(String(sport).toLowerCase())}/lineups${req.nextUrl.search}`, {
+      headers: { Accept: 'application/json' },
+    });
+    const data = await upstream.json().catch(() => ({ byPlayer: {}, postedTeams: [] }));
+    return NextResponse.json(data, { status: upstream.ok ? 200 : upstream.status });
+  } catch {
+    return NextResponse.json({ byPlayer: {}, postedTeams: [] }, { status: 200 });
+  }
+}