feat: Airwallex 发卡管理后台完整实现

- 后端: FastAPI + SQLAlchemy + SQLite, JWT认证, 代理支持的AirwallexClient
- 前端: React 18 + Vite + Ant Design 5, 中文界面
- 功能: 卡片管理, 持卡人管理, 交易记录, API令牌, 系统设置, 审计日志
- 第三方API: X-API-Key认证, 权限控制
- Docker部署: docker-compose编排前后端

backend/app/services/audit_log.py

@@ -0,0 +1,56 @@
+"""Audit logging service."""
+from datetime import datetime, timezone
+from sqlalchemy.orm import Session
+from app.models.db_models import AuditLog, CardLog
+
+
+def create_audit_log(
+    db: Session,
+    action: str,
+    resource_type: str,
+    operator: str,
+    resource_id: str = "",
+    ip_address: str = "",
+    details: str = "",
+) -> AuditLog:
+    """Create an audit log entry."""
+    log = AuditLog(
+        action=action,
+        resource_type=resource_type,
+        resource_id=resource_id,
+        operator=operator,
+        ip_address=ip_address,
+        details=details,
+        created_at=datetime.now(timezone.utc),
+    )
+    db.add(log)
+    db.commit()
+    db.refresh(log)
+    return log
+
+
+def create_card_log(
+    db: Session,
+    action: str,
+    status: str,
+    operator: str,
+    card_id: str = "",
+    cardholder_id: str = "",
+    request_data: str = "",
+    response_data: str = "",
+) -> CardLog:
+    """Create a card operation log entry."""
+    log = CardLog(
+        card_id=card_id,
+        cardholder_id=cardholder_id,
+        action=action,
+        status=status,
+        operator=operator,
+        request_data=request_data,
+        response_data=response_data,
+        created_at=datetime.now(timezone.utc),
+    )
+    db.add(log)
+    db.commit()
+    db.refresh(log)
+    return log