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>

Makefile

@@ -0,0 +1,55 @@
+# Makefile: 適用於 docker-compose 專案，自動取用當前資料夾為專案名
+
+COMPOSE := docker-compose
+COMPOSE_FILE := docker-compose.yml
+PROJECT_NAME := $(notdir $(CURDIR))  # 依照當前資料夾自動命名
+
+# 可選自訂 .env 變數（預設 docker-compose 自動載入）
+# ENV_FILE := .env
+
+.PHONY: help up down build restart logs ps exec clean prune
+
+help:
+	@echo "🔧 Docker Compose Makefile 指令："
+	@echo "  make up         - 啟動所有服務 (背景執行)"
+	@echo "  make up-fg      - 前景執行（方便除錯）"
+	@echo "  make down       - 停止並移除服務容器"
+	@echo "  make build      - 重新建構服務映像檔"
+	@echo "  make restart    - 重啟所有服務"
+	@echo "  make logs       - 查看服務日誌"
+	@echo "  make ps         - 顯示服務狀態"
+	@echo "  make exec       - 進入主要容器 shell"
+	@echo "  make clean      - 清理所有服務資料（含 volume）"
+	@echo "  make prune      - 清除未使用的資源"
+
+up:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) up -d
+
+up-fg:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) up
+
+down:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) down
+
+build:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) build
+
+restart:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) down
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) up -d
+
+logs:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) logs -f --tail=100
+
+ps:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) ps
+
+exec:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) exec app sh
+
+clean:
+	$(COMPOSE) -p $(PROJECT_NAME) -f $(COMPOSE_FILE) down -v --remove-orphans
+
+prune:
+	docker system prune -af --volumes
+