Initial commit: Headscale management scripts and configuration

- Add headscale binary and configuration files
- Include management scripts for API keys, nodes, and authentication
- Add Docker setup with docker-compose
- Include backup and restore functionality
- Add example scripts for creating API keys and pre-auth keys

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

revoke_headscale_api_key.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+docker exec -it headscale headscale apikeys revoke <KEY_ID>
+