feat(F-106): completed feature

work/artifacts/F-106/security.json

@@ -0,0 +1,12 @@
+{
+  "feature_id": "F-106",
+  "agent": "security",
+  "summary": "All new endpoints require admin auth; inputs validated with zod (uuid, quantity 1..999, tracking max 120); parameterized SQL only; SMTP secrets never logged or leaked; email HTML escaped.",
+  "evidence": [
+    "authenticate + requireRole('admin') on items edit and admin transition",
+    "No user-supplied totals trusted; discount capped, totals floored at 0",
+    "escapeHtml applied to all dynamic email content"
+  ],
+  "verdict": "APPROVED",
+  "timestamp": "2026-08-21T07:27:36Z"
+}