Add Dog model

models/dog.py

@@ -1,16 +1,22 @@
-from sqlalchemy import Column, String, DateTime
+from sqlalchemy import Column, String, Integer, Boolean, DateTime, ForeignKey
+from sqlalchemy.orm import relationship
 from sqlalchemy.sql import func
 from core.database import Base
 import uuid
+from datetime import datetime
 
 class Dog(Base):
     __tablename__ = "dogs"
     id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
-    breed_name = Column(String, unique=True, nullable=False, index=True)
-    origin = Column(String)
-    size = Column(String)
-    temperament = Column(String)
-    life_span = Column(String)
+    name = Column(String, nullable=False)
+    breed = Column(String, nullable=False)
+    age = Column(Integer)
+    color = Column(String)
+    weight = Column(Float)
+    is_vaccinated = Column(Boolean, default=False)
+    microchip_number = Column(String, unique=True)
+    gender = Column(String)
+    is_neutered = Column(Boolean, default=False)
     description = Column(String)
     created_at = Column(DateTime, default=func.now())
     updated_at = Column(DateTime, default=func.now(), onupdate=func.now())