Record two-factor delivery and PR #33

docs/implementation.md

@@ -358,3 +358,7 @@ metadata handling, disabled-policy latency, route timer disposal and lint findin
 
 See [the UX and measurement contract](ux/two-factor.md) and
 [shared auth integration guide](../frontend/packages/sxchnge_auth/README.md).
+
+Delivery: [PR #33](https://git.sendico.io/tech/sxchnge/pulls/33) targets `main`;
+committed and pushed, unmerged. Issue #32 and PR #33 metadata verified: frontend
+label, tech owner and SXCHNGE project. No stacked dependencies.