2 Commits

Author SHA1 Message Date
Kwaku Danso 98678ff5a3 feat(tier2): finish the finish line — Block H follow-ups, Block G geolocation, cross-cutting
Three threads of work land here together to close out Tier 2.

### Block H follow-ups — day-of check-in
- Scanner is now an "open on your phone" magic-link flow. Hosts on
  desktop mint a scoped JWT via POST /events/{id}/scanner-ticket and
  render its URL into a QR; phone scans it and lands on /scanner with
  the ticket as bearer. The ticket carries Audience=scanner so it can
  never substitute for a session token.
- Plus-one confirmation at the door: scan → POST /check-in/preview to
  fetch guest + expected party size → confirm buttons ("Just them",
  "Party of N", custom) → POST /check-in. No more silent arrival_count=1.
- Offline scan queue: failed POSTs go into an IndexedDB store and drain
  on the 'online' event with poison-message protection.
- Day-of arrivals headline widget on the event overview, gated to the
  host's local calendar date so it doesn't dominate the page weeks out.
- Tab nav restyled with inline heroicons + scrollable segmented control;
  Check-in moves to the rightmost slot.
- PWA: manifest + service worker scoped to /scanner, generated 192/512
  icons (Go scripted renderer in scripts/gen-scanner-icons.go).
- Confirmation email QR was rendering broken because html/template
  rewrites data: URLs to #ZgotmplZ; mark the value as template.URL.
- Email "open your invitation" link 404'd because we had no token to
  put after /rsvp/. Threaded AccessLink through the RSVPConfirmed NATS
  event from the API at submit time.

### Block G remainder — geolocation + threshold preview
- Pluggable GeoResolver in the fraud engine (NullResolver, IPApiResolver
  for the free ip-api.com fallback, MaxMindResolver behind GG_GEOIP_DB_PATH).
  Wrapped in a Redis cache (30d TTL). Geo flows through both gRPC and
  NATS scoring paths.
- geo_jump scoring feature: >500km in <1h flags ("accessed from Lagos
  and Paris within 12 minutes"); >500km in <6h is a softer signal. The
  existing single-signal cap keeps a lone geo_jump in MEDIUM.
- FraudScored event carries geo_country/city/lat/lon; ApplyScore uses
  COALESCE so a later re-score without geo doesn't wipe earlier data.
- Threshold-slider live preview: GET /events/{id}/security/thresholds/preview
  returns band counts the host's existing access events would have
  fallen into under the proposed thresholds. Debounced (250ms) widget
  under the Advanced sliders so the host gets concrete feedback instead
  of guessing.

### Cross-cutting — audit, tier-gating, feature flags
- audit_log table + internal/audit.Recorder (async fire-and-forget on
  detached context so an audit blip never fails the real action). Wired
  into branding update, thresholds update, allowlist add/remove,
  collaborator invite/role-change/remove, message create/send-now/cancel.
- Tier-gating: extended billing.Limits with MaxCollaborators,
  CustomBranding, Scanner, Broadcasts. Free = none; Pro = 5 + all;
  Business = unlimited. Gates the scanner-ticket, message create,
  branding put, and collaborator invite endpoints with 402 +
  structured upgrade payload. Auto-reminders, fraud detection, and
  analytics deliberately stay on every tier — those are safety + visibility
  features, not upsell levers.
- Feature flags: feature_flags table + internal/flags.Store with 30s
  in-memory refresh, stable sha256(key + user_id) percent bucketing,
  unknown-key-defaults-on. Six Tier 2 flags pre-seeded. Three handlers
  (branding, broadcasts, scanner) check the kill switch ahead of the
  tier gate so ops can pull a feature back without a redeploy.

### Verified
- go test ./... + fraud-engine pytest (12/12 incl. 3 new geo_jump tests + 5
  new flags tests).
- docker compose build + up across api, fraud-engine, notifier, frontend.
- /health endpoints 200; migrations 0014 + 0015 applied; 6 flags
  seeded; audit_log table + partial indexes confirmed.
- Fraud-engine logs confirm geo resolver kind=CachedGeoResolver provider=auto.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-21 20:30:02 +01:00
Kwaku Danso 003a320690 feat(tier2): day-of check-in — Block H
QR codes on RSVP confirmations, a phone-friendly door scanner, walk-in
support, and a live arrivals widget that updates over WebSocket. Closes
the final Tier 2 block.

Schema (migration 0013)
- check_ins (id, guest_id UNIQUE, checked_in_at, checked_in_by,
  arrival_count, notes, walk_in). UNIQUE on guest_id is the
  double-check-in guard at the DB layer; signature validation lives
  in the QR JWT.

QR JWT
- internal/auth/checkin_qr.go: CheckInQRSigner mints {event_id,
  guest_id, exp} payloads with the platform's existing HMAC secret.
  Issue() extends expiry to eventDate+24h so a QR minted weeks in
  advance still scans on the day. Parse() distinguishes
  ErrExpiredJWT from generic ErrInvalidJWT so the API can render a
  friendlier 410.
- Unit tests cover round-trip, wrong-secret rejection, expiry
  detection, and short-secret refusal at construction time.

Domain + storage
- domain.CheckIn + CheckInSummary
- storage.CheckInRepo: Record (returns ErrAlreadyCheckedIn on the
  unique violation), ListByEvent, Summary (arrived headcount,
  expected headcount, guests-checked-in count), GuestBelongsToEvent
  (belt-and-braces guard against a forged JWT pointing at a
  different event's guest).

API
- GET /access/{token} now embeds a check_in payload (raw JWT + a
  base64-encoded PNG via skip2/go-qrcode) for attending RSVPs, so
  the confirmation page can render the code straight into an <img>.
- POST /events/{id}/check-in — editor+. Validates the QR JWT,
  refuses cross-event payloads (400), refuses expired ones (410),
  records the row, broadcasts check_in.recorded over the existing
  WS hub so the live dashboard updates.
- POST /events/{id}/walk-ins — editor+. Creates the guest + check-in
  in one logical op for a door-add who wasn't on the original list.
- GET /events/{id}/check-ins — viewer+. Returns the list and the
  summary together so the dashboard widget hydrates in one call.

Frontend
- New CheckInCard.vue: live arrivals widget ("47 of 60 · 78%" plus
  a progress bar), recent-arrivals list, Walk-in button, and a
  "Start scanning" button that opens a full-screen camera modal.
  jsQR loaded from CDN on first open (no bundler dep). Scan
  throttling + dedupe prevents the 30fps camera loop from POSTing
  N times per paper QR. Successful scan vibrates the phone.
  Duplicate (409) → "Already checked in" toast; expired (410) →
  "This code has expired"; foreign-event (400) → "doesn't look
  like one of your guests".
- New "Check-in" tab on the event-detail page, between
  Communications and Branding.
- RSVP confirmation card + revisit card both surface a "Save for
  the day" / "Your door code" QR block for attending guests. The
  PNG ships pre-rendered from the API so the frontend doesn't need
  its own QR library.
- The submit flow now refetches /access after a successful POST so
  the QR appears immediately on first submit, not just on revisit.

Tests
- Backend unit tests for the QR signer (round-trip, wrong-secret,
  expired, short-secret rejection).
- Integration: TestCheckInHappyPath (scan -> 200, double-scan ->
  409, summary reflects arrival), TestCheckInRejectsForeignQR
  (event A's JWT can't be used on event B), TestWalkInCreatesGuest
  AndCheckIn (door-add creates both rows).
- Full integration suite passes (188.3s, 41 tests / 80+ subtests).

Tier 2 is complete: Blocks A through H all shipped.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 17:20:46 +01:00