Mike Kell 47b13b1ed1 feat(stage-10c): Square Mobile POS / Checkout ... - Add PaymentMethod enum (cash, card) with label/iconHint extensions - Add PaymentResult value object (transactionId, amountCents, method, completedAt, receiptUrl, amountFormatted) - Add PaymentService abstract contract + PaymentException - Add CheckoutController (ChangeNotifier) with CartEntry and sealed CheckoutState hierarchy - Add FakePaymentService (always succeeds, counter-based IDs) - Update feature_orders barrel exports - Add MobileCheckoutPage (product selection -> cart -> payment -> receipt flow) - Add Sales tab (index 4) to MobileShell; 6 tabs total - Wire paymentService + checkoutCatalogue into all MobileAppServices factories - Add 36 new feature_orders tests (234 total) - Add 18 new kell_mobile tests (72 total); 1373 total across all packages - Update widget_test.dart: destination count 5 -> 6 - Update build_execution_tracker.md and master_development_brief.md All tests passing. dart analyze clean.		2026-07-25 17:37:36 -04:00
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PRD.md	Updated Agentic Instructions	2026-07-25 11:03:51 -04:00
build_execution_tracker.md	feat(stage-10c): Square Mobile POS / Checkout	2026-07-25 17:37:36 -04:00
master_development_brief.md	feat(stage-10c): Square Mobile POS / Checkout	2026-07-25 17:37:36 -04:00