Merge S8 (a1): ops — the product watches itself

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

# Conflicts:
#	BUILD-STATE.md
#	CLAUDE.md
#	src/snapshotScheduler.js

BUILD-STATE.md

@@ -84,6 +84,34 @@ work-order 1.6 closed (canonical player keys + slate join invariant),
 Phase 2 slate UX, Phase 3 mobile P0. DEPLOY GATE: Coolify by Sat 10 AM ET;
 first snapshot locks against freshly posted lines (manual internal trigger).
 
+## Session 8 (A1 board, 2026-07-11) — SHIPPED ✅ OPS: THE PRODUCT WATCHES ITSELF
+
+Branch off day1/a1-board tip. 2398 → 2437 tests (208 suites). Backend-only.
+- **Settlement alarm** (`snapshotScheduler`): outcome/ledger settle pass
+  THROW → ntfy high. Morning zero-settle alarm: ledger settle found
+  pre-today Postgres rows but settled none → page once per ET date
+  (signal = settleLedger's own return values — survives the Redis-TTL
+  failure mode that silently killed morning settles in S60; documented in
+  `opsWatch.zeroSettleAlarm`). Genuinely empty yesterday never alerts.
+- **Persistent-failure pager** (`opsWatch.createFailureTracker`, pure):
+  3 consecutive error / skipped-'no props' slots for a sport pages once
+  (high); any good slot resets and re-arms. Single-slot misses stay quiet.
+- **Quota** (`opsWatch.checkQuotaDaily`): odds-api ≥80% after a snapshot
+  run → one alert/day, Redis-deduped (`ops:quota_day:{provider}:{date}`).
+- **Box health** (`services/systemHealth`, pure + injectable): fs.statfs
+  + os mem → `{disk_pct, mem_pct}`; pages high at disk>85 / mem>90.
+- **Daily pulse** 13:00 UTC (9 AM EDT; `PULSE_HOUR_UTC` to move), ONE
+  notification: ledger rows yesterday (`ledgerService.countRowsForDate`,
+  'n/a' when Supabase off — never a fabricated 0), settles last 24h,
+  quota pct, disk/mem, 'desk pack: see /desk'. Dedupe: in-process date +
+  `ops:pulse:{date}`.
+- **docs/OPS-RUNBOOK.md**: Uptime Kuma monitors (vyndr.app 200, api
+  /api/health keyword 'healthy', /api/snapshot/summary), Coolify
+  deploy-failure webhook → ntfy, ntfy phone-subscription steps.
+- Live acceptance alert POSTed to ntfy.sh/vyndr-pipeline-kev2026.
+- All alert copy VOICE v1.1 — deadpan, numbers, zero exclamation points
+  (tests lint for `!`). Spec: `specs/session-8-ops-watch.md`.
+
 ## Session 60 (night2/full-board, 2026-07-11) — BUILT ✅ THE WHOLE BOARD (awaiting "merge the train")
 
 Branch `night2/full-board` off d10bb4c — ZERO pushes to main. 2352 →