docs: update README and CLAUDE.md to v2.2.0

- Added documentation for audit tracking (IP address, invocation method).
- Updated database model descriptions for enhanced WorkOrder and Conversation fields.
- Documented the new UnifiedConfig system.
- Reflected enhanced logging transparency for knowledge base parsing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

init_database.py

@@ -15,7 +15,7 @@ from pathlib import Path
 # 添加项目根目录到Python路径
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
-from src.config.config import Config
+from src.config.unified_config import get_config
 from src.utils.helpers import setup_logging
 from src.core.database import db_manager
 from src.core.models import (
@@ -67,7 +67,8 @@ class DatabaseInitializer:
 
         try:
             # 设置日志
-            setup_logging(Config.LOG_LEVEL, Config.LOG_FILE)
+            config = get_config()
+        setup_logging(config.server.log_level, "logs/tsp_assistant.log")
 
             # 测试数据库连接
             if not self._test_connection():