feat(F-102): completed feature

work/artifacts/F-102/leader-close.json

@@ -0,0 +1,15 @@
+{
+  "feature_id": "F-102",
+  "agent": "leader",
+  "verdict": "APPROVED",
+  "summary": "F-102 adds product unit weight + minimum purchase quantity and per-method shipping weight limits (max weight and free-shipping weight cap) across backend, admin and storefront.",
+  "evidence": [
+    "reviewer.json APPROVED",
+    "security.json APPROVED",
+    "qa.json APPROVED",
+    "npm test 135 passed / 0 failed",
+    "backend typecheck + admin/frontend tsc --noEmit clean",
+    "migration 038 applied (db:status)"
+  ],
+  "timestamp": "2026-08-21T12:10:00Z"
+}