feat(POS-004): completed feature

work/artifacts/POS-004/architect.md

@@ -0,0 +1,9 @@
+# POS-004 — Architect
+
+## Feature
+POS API Phase 1: config, stores, terminals, sessions routes.
+
+## Design
+Routes: GET/POST /pos/admin/stores, GET/POST /pos/admin/terminals, GET/pos/terminals/me, POST /pos/terminals/bind, GET /pos/config, GET /pos/sessions/me, POST /pos/sessions, POST /pos/sessions/:id/close.
+Auth: requireRole('admin') for admin routes; requireAnyRole(['admin','pos_manager','pos_cashier']) for terminal routes.
+Rate limits applied via existing framework.