// Package parity contains cross-module workflow tests that assert Go service
// outputs equal the documented Laravel rules in docs/business-rules.md (§2-§6).
// It shares one in-memory DB across the sales, purchasing and finance stores so
// real hand-offs (SO→invoice, POS→auto-invoice→payment, PO→GR→payDebt) can be
// asserted end-to-end without a database. Tests only; not linked into prod.
package parity