- Add DKIM, return-path (CNAME), and DMARC DNS records to Terraform
- Add example variables for Postmark integration to vault.example.yml
- Update .gitignore patterns
- Add deploy-app.yml playbook for application-specific deployments
- Add web.yml playbook for web infrastructure management
- Restructure tests/test_config.yml for better organization
- Update inventory/group_vars/all.yml with new hostnames and settings