feat: 添加安全模块 + Dockerfile添加curl支持健康检查

主要更新:
- 新增 security/ 安全模块 (风险评估、威胁检测、蜜罐等)
- Dockerfile 添加 curl 以支持 Docker 健康检查
- 前端页面更新 (管理后台、用户端)
- 数据库迁移和 schema 更新
- 新增 kdocs 上传服务
- 添加安全相关测试用例

Co-Authored-By: Claude <noreply@anthropic.com>

routes/api_accounts.py

@@ -11,7 +11,6 @@ from crypto_utils import encrypt_password as encrypt_account_password
 from flask import Blueprint, jsonify, request
 from flask_login import current_user, login_required
 from services.accounts_service import load_user_accounts
-from services.browser_manager import init_browser_manager_async
 from services.browse_types import BROWSE_TYPE_SHOULD_READ, normalize_browse_type, validate_browse_type
 from services.client_log import log_to_client
 from services.models import Account
@@ -230,10 +229,6 @@ def start_account(account_id):
     if not browse_type:
         return jsonify({"error": "浏览类型无效"}), 400
     enable_screenshot = data.get("enable_screenshot", True)
-    if enable_screenshot:
-        # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求导致“网页无响应”
-        init_browser_manager_async()
-
     ok, message = submit_account_task(
         user_id=user_id,
         account_id=account_id,
@@ -308,9 +303,6 @@ def manual_screenshot(account_id):
 
     account.last_browse_type = browse_type
 
-    # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求
-    init_browser_manager_async()
-
     threading.Thread(
         target=take_screenshot_for_account,
         args=(user_id, account_id, browse_type, "manual_screenshot"),
@@ -336,10 +328,6 @@ def batch_start_accounts():
     if not account_ids:
         return jsonify({"error": "请选择要启动的账号"}), 400
 
-    if enable_screenshot:
-        # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求
-        init_browser_manager_async()
-
     started = []
     failed = []