Fix Bedrock tool history and add upload limit config

scripts/configure-nginx-upload-limit.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 配置线上 nginx 上传体积限制。
+# 需要 sudo 权限；应用服务本身仍然用普通用户运行。
+
+LIMIT="${CLAW_NGINX_CLIENT_MAX_BODY_SIZE:-300m}"
+CONF_PATH="${CLAW_NGINX_UPLOAD_CONF:-/etc/nginx/conf.d/zk-data-agent-upload.conf}"
+
+if ! command -v nginx >/dev/null 2>&1; then
+	echo "WARN 未发现 nginx，跳过上传限制配置。"
+	exit 0
+fi
+
+if ! command -v sudo >/dev/null 2>&1; then
+	echo "ERROR 配置 nginx 需要 sudo。" >&2
+	exit 1
+fi
+
+sudo tee "${CONF_PATH}" >/dev/null <<EOF
+# Managed by zk-data-agent.
+# 放开 Web 文件上传体积，避免大文件上传被 nginx 直接 413。
+client_max_body_size ${LIMIT};
+EOF
+
+sudo nginx -t
+sudo systemctl reload nginx
+echo "已配置 nginx client_max_body_size=${LIMIT} (${CONF_PATH})"