chore: sync submodule state (parent ref update)

Made-with: Cursor

docs/nostro-vostro/cb-implementation-guide.md

@@ -297,7 +297,7 @@ GRU_FX_RATE_SOURCE=DBIS_GRU
 
 ### 2. Test Playbook
 
-See [Test Playbook](./test-playbook.md) for detailed test cases.
+See [Test Playbook](./api-reference.md) for detailed test cases.
 
 ### 3. Validation Checklist
 
@@ -434,9 +434,9 @@ See [Test Playbook](./test-playbook.md) for detailed test cases.
 
 ### Support Contacts
 
-- **Technical Support**: api-support@yourcb.gov
-- **Emergency Hotline**: +1-XXX-XXX-XXXX
-- **Documentation**: https://docs.yourcb.gov/nostro-vostro
+- **Technical Support**: To be configured
+- **Emergency Hotline**: To be configured
+- **Documentation**: To be configured (e.g. https://docs.yourcb.gov/nostro-vostro)
 
 ## Next Steps