[FIX] website_sale_aplicoop: Remove redundant string= attributes and fix OCA linting warnings

- Remove redundant string= from 17 field definitions where name matches string value (W8113)
- Convert @staticmethod to instance methods in selection methods for proper self.env._() access
- Fix W8161 (prefer-env-translation) by using self.env._() instead of standalone _()
- Fix W8301/W8115 (translation-not-lazy) by proper placement of % interpolation outside self.env._()
- Remove unused imports of odoo._ from group_order.py and sale_order_extension.py
- All OCA linting warnings in website_sale_aplicoop main models are now resolved

Changes:
- website_sale_aplicoop/models/group_order.py: 21 field definitions cleaned
- website_sale_aplicoop/models/sale_order_extension.py: 5 field definitions cleaned + @staticmethod conversion
- Consistent with OCA standards for addon submission

website_sale_aplicoop/controllers/portal.py

@@ -1,61 +1,72 @@
 # Copyright 2025 Criptomart
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 
-from odoo import _
-from odoo.http import request, route
-from odoo.addons.sale.controllers import portal as sale_portal
 import logging
 
+from odoo import _
+from odoo.http import request
+from odoo.http import route
+
+from odoo.addons.sale.controllers import portal as sale_portal
+
 _logger = logging.getLogger(__name__)
 
 
 class CustomerPortal(sale_portal.CustomerPortal):
-    '''Extend sale portal to include draft orders.'''
+    """Extend sale portal to include draft orders."""
 
     def _prepare_orders_domain(self, partner):
-        '''Override to include draft and done orders.'''
+        """Override to include draft and done orders."""
         return [
-            ('message_partner_ids', 'child_of', [partner.commercial_partner_id.id]),
-            ('state', 'in', ['draft', 'sale', 'done']),  # Include draft orders
+            ("message_partner_ids", "child_of", [partner.commercial_partner_id.id]),
+            ("state", "in", ["draft", "sale", "done"]),  # Include draft orders
         ]
 
-    @route(['/my/orders', '/my/orders/page/<int:page>'], 
-           type='http', auth='user', website=True)
+    @route(
+        ["/my/orders", "/my/orders/page/<int:page>"],
+        type="http",
+        auth="user",
+        website=True,
+    )
     def portal_my_orders(self, **kwargs):
-        '''Override to add translated day names to context.'''
+        """Override to add translated day names to context."""
         # Get values from parent
-        values = self._prepare_sale_portal_rendering_values(quotation_page=False, **kwargs)
-        
+        values = self._prepare_sale_portal_rendering_values(
+            quotation_page=False, **kwargs
+        )
+
         # Add translated day names for pickup_day display
-        values['day_names'] = [
-            _('Monday'),
-            _('Tuesday'),
-            _('Wednesday'),
-            _('Thursday'),
-            _('Friday'),
-            _('Saturday'),
-            _('Sunday'),
+        values["day_names"] = [
+            _("Monday"),
+            _("Tuesday"),
+            _("Wednesday"),
+            _("Thursday"),
+            _("Friday"),
+            _("Saturday"),
+            _("Sunday"),
         ]
-        
-        request.session['my_orders_history'] = values['orders'].ids[:100]
+
+        request.session["my_orders_history"] = values["orders"].ids[:100]
         return request.render("sale.portal_my_orders", values)
 
-    @route(['/my/orders/<int:order_id>'], type='http', auth='public', website=True)
+    @route(["/my/orders/<int:order_id>"], type="http", auth="public", website=True)
     def portal_order_page(self, order_id, access_token=None, **kwargs):
-        '''Override to add translated day names for order detail page.'''
+        """Override to add translated day names for order detail page."""
         # Call parent to get response
-        response = super().portal_order_page(order_id, access_token=access_token, **kwargs)
-        
+        response = super().portal_order_page(
+            order_id, access_token=access_token, **kwargs
+        )
+
         # If it's a template render (not a redirect), add day_names to the context
-        if hasattr(response, 'qcontext'):
-            response.qcontext['day_names'] = [
-                _('Monday'),
-                _('Tuesday'),
-                _('Wednesday'),
-                _('Thursday'),
-                _('Friday'),
-                _('Saturday'),
-                _('Sunday'),
+        if hasattr(response, "qcontext"):
+            response.qcontext["day_names"] = [
+                _("Monday"),
+                _("Tuesday"),
+                _("Wednesday"),
+                _("Thursday"),
+                _("Friday"),
+                _("Saturday"),
+                _("Sunday"),
             ]
-        
+
         return response