added data models

src/baby_monitor/models/db/user.py

@@ -0,0 +1,20 @@
+"""Database models."""
+
+from sqlalchemy import Column, Integer, String, DateTime
+from datetime import datetime
+
+from baby_monitor.repositories.dependencies.get_database import Base
+
+
+class User(Base):
+    """User database model."""
+
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String, unique=True, index=True, nullable=False)
+    hashed_password = Column(String, nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
+
+    def __repr__(self) -> str:
+        return f"<User(id={self.id}, username='{self.username}')>"