Add LLM anti-prompt injection system

Introduces a comprehensive anti-prompt injection system for LLMs, including rule-based and LLM-based detection, user ban/whitelist management, message shielding, and statistics tracking. Adds new modules under src/chat/antipromptinjector, integrates anti-injection checks into the message receive flow, updates configuration and database models, and provides test scripts. Also updates templates and logger aliases to support the new system.

test_logger_names.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+测试反注入系统logger配置
+"""
+
+import sys
+import os
+
+# 添加项目根目录到路径
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+from src.common.logger import get_logger
+
+def test_logger_names():
+    """测试不同logger名称的显示"""
+    print("=== Logger名称测试 ===")
+    
+    # 测试不同的logger
+    loggers = {
+        "chat": "聊天相关",
+        "anti_injector": "反注入主模块", 
+        "anti_injector.detector": "反注入检测器",
+        "anti_injector.shield": "反注入加盾器"
+    }
+    
+    for logger_name, description in loggers.items():
+        logger = get_logger(logger_name)
+        logger.info(f"这是来自 {description} 的测试消息")
+    
+    print("测试完成，请查看上方日志输出的标签")
+
+if __name__ == "__main__":
+    test_logger_names()