feat(POS-009): completed feature

work/artifacts/POS-009/architect.md

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+# POS-009 — Architect
+
+## Feature
+POS Phase 1 ticket 009: Customer search + association.
+
+## Objetivo
+Allow POS terminal operators to search and associate a customer with a sale (for loyalty/address). Endpoints: GET /pos/customers/search and GET /pos/customers/:id.
+
+## Diseño
+- Search: ILIKE on email, first_name, last_name, phone from identity_users + users_profiles JOIN
+- Limit 20 results, min 2-char query
+- Returns id, email, firstName, lastName, phone