Add supplier and imporve inventory frontend 2

services/inventory/app/models/inventory.py

@@ -178,7 +178,7 @@ class Ingredient(Base):
         else:
             # Final fallback
             category = "other"
-        
+
         return {
             'id': str(self.id),
             'tenant_id': str(self.tenant_id),
@@ -209,12 +209,12 @@ class Ingredient(Base):
             'delivery_days': self.delivery_days,
             'minimum_order_quantity': self.minimum_order_quantity,
             'pack_size': self.pack_size,
-            'is_active': self.is_active,
-            'is_perishable': self.is_perishable,
+            'is_active': self.is_active if self.is_active is not None else True,
+            'is_perishable': self.is_perishable if self.is_perishable is not None else False,
             'allergen_info': self.allergen_info,
             'nutritional_info': self.nutritional_info,
             'created_at': self.created_at.isoformat() if self.created_at else None,
-            'updated_at': self.updated_at.isoformat() if self.updated_at else None,
+            'updated_at': self.updated_at.isoformat() if self.updated_at else datetime.now(timezone.utc).isoformat(),
             'created_by': str(self.created_by) if self.created_by else None,
         }