Add User model

backend/app/models/user.py

@@ -0,0 +1,22 @@
+"""User model."""
+from sqlalchemy import Boolean, Column, Integer, String, DateTime
+from sqlalchemy.orm import relationship
+from datetime import datetime
+from app.core.database import Base
+
+class User(Base):
+    """User model."""
+    __tablename__ = "users"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String(50), unique=True, index=True, nullable=False)
+    email = Column(String(100), unique=True, index=True, nullable=False)
+    full_name = Column(String(100))
+    hashed_password = Column(String(200), nullable=False)
+    is_active = Column(Boolean, default=True)
+    is_admin = Column(Boolean, default=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # Relationships
+    chores = relationship("Chore", back_populates="assigned_user")