Update Ansible configuration and enhance playbook

- Add UFW configuration to secure server ports
- Install additional packages including vim, zsh, and monitoring tools
- Change default shell for 'deploy' user to zsh
- Update .gitignore to include Ansible inventory files

infra/ansible/inventory.ini

@@ -1,5 +1,5 @@
 [new_server]
-#your-new-server-ip ansible_user=deploy
+127.0.0.1 ansible_user=deploy
 
 [all:vars]
 ansible_python_interpreter=/usr/bin/python3