feat: adicionando models.py

app.py/models.py

-from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
 
-app = Flask(__name__)
+# Inicializa o banco de dados
+db = SQLAlchemy()
 
-if __name__ == "__main__":
-    app.run(debug=True)
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+class Animal(db.Model):
+    __tablename__ = 'animais'
+    
+    id = db.Column(db.Integer, primary_key=True)
+    nome = db.Column(db.String(100), nullable=False)
+    especie = db.Column(db.String(50), nullable=False)
+    idade = db.Column(db.Integer, nullable=False)
+    peso = db.Column(db.Float, nullable=False)
+
+    def __repr__(self):
+        return f'<Animal {self.nome}>'
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