feat: initial commit

backend/app/models/system_setting.py

@@ -0,0 +1,11 @@
+from datetime import datetime
+from sqlalchemy import Column, String, Text, DateTime
+from app.database import Base
+
+
+class SystemSetting(Base):
+    __tablename__ = "system_settings"
+
+    key = Column(String(100), primary_key=True)
+    value = Column(Text, nullable=True)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)