test(infra): verify-registerrecord asserts RegisterRecord objecttype registered + published (refs #141)

Fails against a stack with Objecttypen up but no objecttype seeded yet:
"no objecttype named 'RegisterRecord'". Green comes with the seeded
registerrecord-init one-shot in the next commit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -207,6 +207,9 @@ jobs:
       - name: Objecten API up + token authenticates + trusts Objecttypen
         id: objecten
         run: OBJECTEN_TIMEOUT=120 make verify-objecten
+      - name: RegisterRecord objecttype registered + published
+        id: registerrecord
+        run: REGISTERRECORD_TIMEOUT=120 make verify-registerrecord
       - name: ACL ↔ OpenZaak integration tests
         id: acl
         run: make verify-acl
@@ -241,6 +244,7 @@ jobs:
           OBS: ${{ steps.obs.outcome }}
           OBJECTTYPEN: ${{ steps.objecttypen.outcome }}
           OBJECTEN: ${{ steps.objecten.outcome }}
+          REGISTERRECORD: ${{ steps.registerrecord.outcome }}
           ACL: ${{ steps.acl.outcome }}
           NRC: ${{ steps.nrc.outcome }}
           PROJECTION: ${{ steps.projection.outcome }}
@@ -261,6 +265,7 @@ jobs:
             echo "| Observability backplane | $(icon "$OBS") |"
             echo "| Objecttypen API + token | $(icon "$OBJECTTYPEN") |"
             echo "| Objecten API + token | $(icon "$OBJECTEN") |"
+            echo "| RegisterRecord objecttype | $(icon "$REGISTERRECORD") |"
             echo "| ACL ↔ OpenZaak | $(icon "$ACL") |"
             echo "| OpenZaak → NRC | $(icon "$NRC") |"
             echo "| NRC → Event Subscriber → projection | $(icon "$PROJECTION") |"