Add curl|bash manage.sh with deploy/uninstall/update menu.

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/lib/install.sh

@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+# deploy/lib/install.sh — 一键部署
+set -e
+set -u
+if [ -n "${BASH_VERSION:-}" ]; then
+  set -o pipefail
+fi
+
+LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=common.sh
+source "${LIB_DIR}/common.sh"
+
+run_pipeline() {
+  local root="$1"
+  REPO_ROOT="${root}"
+  step "构建并启动 (pull_and_restart.sh)"
+  bash "${REPO_ROOT}/deploy/pull_and_restart.sh"
+  pm2_save_startup
+  verify_health || true
+  print_post_install_guide
+}
+
+install_fresh() {
+  require_root
+  ensure_system_deps
+  step "克隆仓库 → ${INSTALL_ROOT}"
+  if [[ -d "${INSTALL_ROOT}" ]]; then
+    die "目录已存在: ${INSTALL_ROOT}，请先卸载或选修复"
+  fi
+  mkdir -p "$(dirname "${INSTALL_ROOT}")"
+  git clone -b "${GIT_BRANCH}" "${GIT_URL}" "${INSTALL_ROOT}"
+  run_pipeline "${INSTALL_ROOT}"
+}
+
+install_repair() {
+  require_root
+  ensure_system_deps
+  if ! REPO_ROOT="$(resolve_repo_root)"; then
+    die "未找到安装目录 ${INSTALL_ROOT}"
+  fi
+  step "修复环境(保留 .env 与数据库)"
+  run_pipeline "${REPO_ROOT}"
+}
+
+handle_existing() {
+  echo ""
+  echo "检测到已部署: ${INSTALL_ROOT}"
+  echo "  a) 取消"
+  echo "  b) 修复/重装环境(保留 .env 与 SQLite)"
+  local choice=""
+  cm_read choice "请选择 [a/b]: "
+  case "${choice}" in
+    b|B) install_repair ;;
+    *) log "已取消" ;;
+  esac
+}
+
+main_install() {
+  require_root
+  if repo_ready "${INSTALL_ROOT}"; then
+    handle_existing
+  else
+    install_fresh
+  fi
+}
+
+main_install "$@"