- Introduced a new `dashboard` frontend in HAProxy configuration to serve a real-time monitoring dashboard.
- Added support for returning prebuilt `dashboard.html` for `/` or `/index.html` paths.
- Updated test cases and expected outputs to accommodate the new frontend.

- Added a Python-based HTTP server to serve `dashboard.html` at `/` or `/dashboard.html` paths.
- Updated HAProxy configuration to integrate backend for the dashboard.
- Enhanced handling of index paths with conditional redirects to the dashboard page.
- Modified tests and updated expected outputs to reflect these changes.

- Updated HAProxy configuration templates to include `check` for `srv_stats` and `srv_dashboard` backends.
- Adjusted expected test case outputs to account for the added health check settings.

- Revised environment variables reference to clarify `HAPROXY_STATS_CORS_ORIGIN` requirements for the dashboard.
- Enhanced README with details about the real-time monitoring dashboard and its capabilities.
- Added a new "Monitoring Dashboard" guide, providing setup steps, login instructions, and feature overviews.
- Included images for dashboard visuals (`dashboard_thumbnail.png`, `dashboard_login.png`).

- Set up HAProxy stats environment variables (`HAPROXY_USERNAME`, `HAPROXY_PASSWORD`, `HAPROXY_STATS_PORT`) for monitoring.
- Updated test fixture to ensure robust cleanup with try-finally blocks.