new init

apps/backend/app/models/audit_log.py

@@ -0,0 +1,29 @@
+from app.core.database import Base
+from sqlalchemy import Column, Integer, String, DateTime, Enum, ForeignKey
+from sqlalchemy.orm import relationship
+from datetime import datetime
+import enum
+
+
+class AuditAction(enum.Enum):
+    booking_create = "booking_create"
+    booking_delete = "booking_delete"
+    topup_create = "topup_create"
+    # Weitere Aktionen können hier ergänzt werden, z. B.:
+    # topup_confirm = "topup_confirm"
+    # user_update = "user_update"
+
+
+class AuditLog(Base):
+    __tablename__ = "audit_logs"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    action = Column(String, nullable=False)
+    amount_cents = Column(Integer, nullable=True)
+    old_balance_cents = Column(Integer, nullable=True)
+    new_balance_cents = Column(Integer, nullable=True)
+    info = Column(String, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+    user = relationship("User")