feat: Update EZ-Homelab configurations and documentation

- Update .env.example with latest environment variables
- Enhance homepage dashboard configurations and templates
- Improve Traefik routing templates for external hosts
- Update docker-compose files for dashboards and infrastructure
- Add comprehensive TUI documentation and PRD
- Add new Homelab-Audit documentation
- Remove outdated release notes

docker-compose/dashboards/homepage/dokuwiki/conf/plugins.php

@@ -0,0 +1,6 @@
+<?php
+/**
+ * This file configures the default states of available plugins. All settings in
+ * the plugins.*.php files will override those here.
+ */
+$plugins['testing'] = 0;