feat(F-186): completed feature

work/artifacts/F-186/leader-close.json

@@ -0,0 +1,19 @@
+{
+  "feature_id": "F-186",
+  "agent": "leader",
+  "stage": "close",
+  "verdict": "APPROVED",
+  "checks": [
+    { "item": "reviewer/security/qa gates APPROVED", "ok": true },
+    { "item": "350/350 tests with real PostgreSQL sequential", "ok": true },
+    { "item": "backend/POS/admin typecheck and production builds", "ok": true },
+    { "item": "migration up/no-op/down/up", "ok": true },
+    { "item": "verify.sh final exit 0", "ok": true },
+    { "item": "documentation and follow-up tickets F-187..F-193", "ok": true }
+  ],
+  "issues": [],
+  "notes": [
+    "Unrelated pre-existing upload files are intentionally excluded from the feature commit.",
+    "Repository-wide lint debt is documented in implementer evidence; changed-file lint is green."
+  ]
+}