adding instances

models.py

@@ -493,4 +493,22 @@ class ManagementAPIKey(db.Model):
     creator = db.relationship('User', backref=db.backref('created_api_keys', cascade='all, delete-orphan'))
 
     def __repr__(self):
-        return f'<ManagementAPIKey {self.name}>' 
+        return f'<ManagementAPIKey {self.name}>'
+
+class Instance(db.Model):
+    __tablename__ = 'instances'
+    
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(100), nullable=False)
+    company = db.Column(db.String(100), nullable=False)
+    rooms_count = db.Column(db.Integer, default=0)
+    conversations_count = db.Column(db.Integer, default=0)
+    data_size = db.Column(db.Float, default=0)  # in GB
+    payment_plan = db.Column(db.String(50), nullable=False)
+    main_url = db.Column(db.String(255), nullable=False)
+    status = db.Column(db.String(20), default='inactive')  # active or inactive
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    def __repr__(self):
+        return f'<Instance {self.name}>'