Security:
- Fix TOCTOU race conditions: move balance/limit checks after row lock in redeem_points, add_stamp, redeem_stamps
- Add PIN ownership verification to update/delete/unlock store routes
- Gate adjust_points endpoint to merchant_owner role only
Data integrity:
- Track total_points_voided in void_points
- Add order_reference idempotency guard in earn_points
Correctness:
- Fix LoyaltyProgramAlreadyExistsException to use merchant_id parameter
- Add StorefrontProgramResponse excluding wallet IDs from public API
- Add bounds (±100000) to PointsAdjustRequest.points_delta
Audit & config:
- Add CARD_REACTIVATED transaction type with audit record
- Improve admin audit logging with actor identity and old values
- Use merchant-specific PIN lockout settings with global fallback
- Guard MerchantLoyaltySettings creation with get_or_create pattern
Tests: 27 new tests (265 total) covering all 12 items — unit and integration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Covers card lookup route ordering, func.replace normalization, customer
name in transactions, self-enrollment creation, and earn points endpoint.
54 tests total (was 1).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
