phase 3.1

backend/app/database/models/user.py

@@ -0,0 +1,29 @@
+"""User model for authentication and ownership."""
+import uuid
+from datetime import datetime
+from sqlalchemy import Boolean, Column, DateTime, String
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import relationship
+
+from app.database.base import Base
+
+
+class User(Base):
+    """User model representing registered users."""
+
+    __tablename__ = "users"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    email = Column(String(255), unique=True, nullable=False, index=True)
+    password_hash = Column(String(255), nullable=False)
+    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
+    updated_at = Column(DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)
+    is_active = Column(Boolean, nullable=False, default=True)
+
+    # Relationships
+    boards = relationship("Board", back_populates="user", cascade="all, delete-orphan")
+    images = relationship("Image", back_populates="user", cascade="all, delete-orphan")
+
+    def __repr__(self) -> str:
+        return f"<User(id={self.id}, email={self.email})>"
+