Session 52: Coming Soon teaser + infrastructure verification (2239 tests)

Phase 1 — Push-to-Book teaser (feature not live; teaser only):
- StatStrip: "BOOK IT ⟶" per graded prop (hover: "Push-to-Book coming soon").
- GradeResultCard: "PUSH-TO-BOOK · COMING SOON" footer.

Phase 2 — infrastructure verification:
- snapshotScheduler logs armed AND disarmed state (incl SNAPSHOT_CRON) so
  container logs disambiguate off-vs-crashed.
- NEW GET /api/internal/snapshot/status (internal-key gated): cron_armed,
  cron_hours_utc, last_snapshot per sport (gradeCount/deltaCount), redis_keys
  existence map, ticker_count. The post-deploy pipeline health probe.
- Finding: Redis AOF/RDB persistence is a server-side (Coolify) config the app
  can't set/verify — documented.

Phase 3 — delta pipeline (verified sound, no fix needed):
- runSnapshot already rotates :latest->:previous and diffs locked lines; added
  opt-in SNAPSHOT_DEBUG=1 [deltas] log + a trace test asserting :previous is
  preserved verbatim and the delta math is correct.

Backend 2234 -> 2239 tests (+5), 192 suites. Web build clean (exit 0).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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2026-06-18
## Current Phase
SHIP BUILD v51.0 — Team Hub: /team/[abbr] roster with archetypes, season stats,
graded props; clickable team abbrs on every game card. Research depth.
SHIP BUILD v52.0 — Push-to-Book "Coming Soon" teaser + infrastructure
verification (snapshot status probe, scheduler logs, delta pipeline confirmed).
## Session 52 (2026-06-19) — SHIPPED ✅ TEASER + INFRA VERIFICATION
Backend 2234 → **2239 tests** (+5), 192 suites. Web build clean (exit 0).
### Phase 1 — Push-to-Book teaser (feature NOT live; teaser only)
- `StatStrip`: a `BookItTeaser` ("BOOK IT ⟶", hover tooltip "Push-to-Book coming
soon — connect your sportsbook") after the parlay "+" on every graded prop.
- `GradeResultCard`: a "PUSH-TO-BOOK · COMING SOON" footer section.
### Phase 2 — infrastructure verification
- `snapshotScheduler` now logs BOTH states: armed (`[snapshotScheduler] armed —
SNAPSHOT_CRON=1, hours=…`) and disarmed (so container logs disambiguate
off-vs-crashed). Test asserts the armed log.
- NEW `GET /api/internal/snapshot/status` (internal-key gated): `{ cron_armed,
cron_hours_utc, last_snapshot:{sport:{updated_at,gradeCount,deltaCount}},
redis_keys:{…:bool}, ticker_count }`. The single probe to verify the pipeline
post-deploy.
- REDIS PERSISTENCE FINDING: the app uses `REDIS_URL` (ioredis) — AOF/RDB
persistence is a server-side (Coolify Redis) config the app can't set/verify.
If snapshot keys vanish on restart, enable persistence on the Redis instance.
### Phase 3 — delta pipeline (verified sound; no fix needed)
`runSnapshot` already reads `:latest` as prev → `computeLineDeltas(enriched,
prev.grades)` → writes old→`:previous`, new→`:latest`. So deltas populate on the
2nd+ run. Added an opt-in debug log (`SNAPSHOT_DEBUG=1`) + a trace test asserting
`:previous` is preserved verbatim and the delta math is correct.
## Session 51 (2026-06-19) — SHIPPED ✅ TEAM HUB
## Session 51 (2026-06-19) — SHIPPED ✅ TEAM HUB