Refactor and enhance Ansible configurations for dev-02 and nginx proxy setup

- Updated host_vars for dev-02 to include login history settings and modified code server authentication.
- Adjusted opencode server configurations and reduced resource allocation.
- Introduced a new playbook for configuring nginx reverse proxy with TLS and OAuth2.
- Enhanced linux_dev_station role defaults and tasks, including package updates and service configurations.
- Removed unnecessary credential assertions in linux_dev_station tasks.
- Created nginx_proxy role with tasks for certbot, nginx installation, and oauth2-proxy setup.
- Added templates for nginx and oauth2-proxy configurations.
- Updated terraform configuration to reflect new DNS records for ide and agent services.
- Documented changes and configurations in linux_dev_station.md for clarity and future reference.

ansible/roles/linux_dev_station/templates/opencode.service.j2

@@ -16,8 +16,6 @@ StandardError=append:{{ linux_dev_station_logs_dir }}/opencode.err.log
 Environment="HOME={{ linux_dev_station_service_home }}"
 Environment="PATH={{ linux_dev_station_path }}"
 Environment="TMPDIR={{ linux_dev_station_service_home }}/.cache/tmp"
-Environment="OPENCODE_SERVER_USERNAME={{ linux_dev_station_opencode_server_username }}"
-Environment="OPENCODE_SERVER_PASSWORD={{ linux_dev_station_opencode_server_password }}"
 {% for env_key, env_value in linux_dev_station_opencode_extra_environment.items() %}
 Environment="{{ env_key }}={{ env_value }}"
 {% endfor %}