feat(POS-004): completed feature

work/artifacts/POS-004/security.json

@@ -0,0 +1,13 @@
+{
+  "feature_id": "POS-004",
+  "agent": "security",
+  "stage": "security_gate",
+  "verdict": "APPROVED",
+  "summary": "Admin routes require 'admin' role. Terminal routes require 'admin'/'pos_manager'/'pos_cashier'. All DB queries parameterized. x-terminal-id header used but validated as UUID.",
+  "checks": [
+    {"item": "Authentication", "ok": true, "evidence": "requireRole/admin for admin; requireAnyRole for terminal"},
+    {"item": "Parameterized queries", "ok": true, "evidence": "All pool.query uses $1, $2 placeholders"},
+    {"item": "No new secrets", "ok": true, "evidence": "No env vars added"}
+  ],
+  "issues": []
+}