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>

security/__init__.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+from security.blacklist import BlacklistManager
+from security.honeypot import HoneypotResponder
+from security.middleware import init_security_middleware
+from security.response_handler import ResponseAction, ResponseHandler, ResponseStrategy
+from security.risk_scorer import RiskScorer
+from security.threat_detector import ThreatDetector, ThreatResult
+
+__all__ = [
+    "BlacklistManager",
+    "HoneypotResponder",
+    "init_security_middleware",
+    "ResponseAction",
+    "ResponseHandler",
+    "ResponseStrategy",
+    "RiskScorer",
+    "ThreatDetector",
+    "ThreatResult",
+]