[FIX] product_sale_price_from_pricelist: Correct _compute_price method signature

- Changed parameter from 'qty' to 'quantity' to match Odoo 18.0 base class
- Fixes TypeError: ProductPricelistItem._compute_price() got an unexpected keyword argument 'quantity'
- This was causing price calculation failures when saving sale orders

[FIX] website_sale_aplicoop: Fix logging format string

- Changed logging format from %d to %s for existing_draft_id which is a string from JSON
- Fixes 'TypeError: %d format: a real number is required, not str' in logging

product_sale_price_from_pricelist/models/product_pricelist_item.py

@@ -2,7 +2,8 @@
 # @author Santi Noreña (<santi@criptomart.net>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import fields, models
+from odoo import fields
+from odoo import models
 
 
 class ProductPricelistItem(models.Model):
@@ -13,8 +14,8 @@ class ProductPricelistItem(models.Model):
         ondelete={"last_purchase_price": "set default"},
     )
 
-    def _compute_price(self, product, qty, uom, date, currency=None):
-        result = super()._compute_price(product, qty, uom, date, currency)
+    def _compute_price(self, product, quantity, uom, date, currency=None):
+        result = super()._compute_price(product, quantity, uom, date, currency)
         if self.compute_price == "formula" and self.base == "last_purchase_price":
             result = product.sudo().last_purchase_price_received
         return result