feat: add interactive config setup on first start, install scripts, and uninstall cleanup

install.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+# Smart Network Shutdown Monitor - Linux Installer
+# Usage: curl -sSL https://raw.githubusercontent.com/UnbalancedCat/smart-shutdown/main/install.sh | sudo sh
+
+set -e
+
+# Check root privileges
+if [ "$(id -u)" -ne 0 ]; then
+    echo "[FAIL] 此安装脚本必须以 root 权限运行。请使用 sudo 执行。"
+    exit 1
+fi
+
+ARCH=$(uname -m)
+case "$ARCH" in
+    x86_64)  ARCH="amd64" ;;
+    aarch64) ARCH="arm64" ;;
+    armv7l)  ARCH="armv7" ;;
+    *)       echo "[FAIL] 不支持的架构: $ARCH"; exit 1 ;;
+esac
+
+FILE_NAME="smart-shutdown_linux_${ARCH}"
+DOWNLOAD_URL="https://github.com/UnbalancedCat/smart-shutdown/releases/latest/download/$FILE_NAME"
+TARGET_PATH="/usr/local/bin/smart-shutdown"
+
+echo "正在下载最新版本: $FILE_NAME ..."
+curl -sSL "$DOWNLOAD_URL" -o "$TARGET_PATH"
+chmod +x "$TARGET_PATH"
+
+echo "正在执行安装与服务注册..."
+smart-shutdown install
+
+echo "正在启动后台服务..."
+smart-shutdown start
+
+echo "安装完成。此后可直接使用 smart-shutdown 命令。"