Payment log

Immutable append-only audit. Rows are never updated or deleted (schema uses onDelete: Restrict).

When	Actor	Action	Payment	Snapshot
2026-09-10 07:49	Priya Chandra	RECEIVED	250.00 Visa · inv 601700	{"amount":250,"method":"Visa","invoice":"601700","receivedAt":"2026-09-10T03:15:00Z"}