chore: track Linux deploy scripts with forced git pull

Ship start/restart/pull-and-restart and deploy lib so production can one-line update; git_pull_hard uses checkout -f, restart --pull aligns then restarts.

start.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# AI 建站 — Linux 一键启动（Docker Compose）
+# 用法：cd 项目根 && ./start.sh [--rebuild] [--no-pull]
+# 默认从 Gitea 强制对齐最新代码再启动（可用 --no-pull / AIJZ_SKIP_GIT_PULL=1 跳过）
+# 生产一键更新也可用：./restart.sh --pull  或  ./pull-and-restart.sh
+# 行尾：LF
+set -euo pipefail
+ROOT="$(cd "$(dirname "$0")" && pwd)"
+cd "$ROOT"
+# shellcheck disable=SC1091
+. "$ROOT/scripts/lib-aijz-deploy.sh"
+
+REBUILD=0
+DO_PULL=1
+for a in "$@"; do
+  case "$a" in
+    --rebuild|-r) REBUILD=1 ;;
+    --no-pull) DO_PULL=0 ;;
+    --pull) DO_PULL=1 ;;
+    -h|--help)
+      echo "用法: $0 [--rebuild] [--no-pull|--pull]"
+      echo "  默认拉取并硬对齐: ${AIJZ_GIT_URL:-https://gitea.yuxindazhineng.com/whm/ai_site.git} 分支 ${GIT_BRANCH:-main}"
+      echo "  跳过拉取: --no-pull 或 AIJZ_SKIP_GIT_PULL=1"
+      echo "  仅更新重启: ./restart.sh --pull"
+      exit 0
+      ;;
+  esac
+done
+if [ "${AIJZ_SKIP_GIT_PULL:-0}" = "1" ]; then
+  DO_PULL=0
+fi
+
+echo "========================================"
+echo "  AI 建站 启动"
+echo "  路径: $ROOT"
+echo "========================================"
+
+if [ "$DO_PULL" = "1" ]; then
+  git_pull_hard
+else
+  echo "已跳过代码拉取（--no-pull / AIJZ_SKIP_GIT_PULL）"
+fi
+
+ensure_docker
+ensure_env_file
+export_defaults
+stack_up "$REBUILD"
+healthcheck
+print_endpoints