feat(F-144): completed feature

work/artifacts/F-144/leader-close.json

@@ -0,0 +1,15 @@
+{
+  "feature_id": "F-144",
+  "agent": "leader",
+  "stage": "close",
+  "verdict": "APPROVED",
+  "summary": "F-144 completed: migration 048 adds orders_orders.store_id (uuid NOT NULL DEFAULT default-store + FK→pos_stores(id) VALID + index (store_id,created_at)), orders_orders.shipping_cents (integer NOT NULL DEFAULT 0), and orders_items.cost_at_sale_cents (bigint)/vat_rate (text) nullable line snapshots. reportin-snapshots.itest.ts 3/3 (real PostgreSQL); tsc 0 errors; boundaries 0 new (only pre-existing R1); verify.sh green.",
+  "checks": [
+    {"item": "Implementer evidence", "ok": true, "evidence": "work/artifacts/F-144/implementer.md (migration + itest + tsc/boundaries/verify)"},
+    {"item": "Gates approved", "ok": true, "evidence": "reviewer.json, security.json, qa.json -> APPROVED"},
+    {"item": "verify.sh", "ok": true, "evidence": "exit 0 (backlog 270 features valid, runtime-status consistent)"},
+    {"item": "Artifacts present", "ok": true, "evidence": "architect.md, implementer.md, reviewer.json, security.json, qa.json, documenter.md, leader-close.json all present in work/artifacts/F-144/"},
+    {"item": "Backlog consistency", "ok": true, "evidence": "F-144 in_progress in backlog (started via new_ticket.py --start F-144); runtime-status at build/implementer -> review_gate -> security_gate -> qa_gate -> document -> close"}
+  ],
+  "issues": []
+}