[IMP] website_sale_aplicoop: propagate consumer_group_id directly from group_order

- Add consumer_group_id to sale.order for tracking the consumer group
- Fix stock.picking consumer_group_id to use sale_id.consumer_group_id
- Add group_ids inverse relation in res.partner for bidirectional access
- Remove auto-calculation of consumer_group_id, data comes directly from group_order.group_ids[0]
- Add debug logging for consumer_group propagation
- commitment_date propagates directly from group_order (no recalculation)

website_sale_aplicoop/models/res_partner_extension.py

@@ -18,14 +18,26 @@ class ResPartner(models.Model):
     )
 
     # Relación para los miembros de un grupo (si is_group es True)
+    # Este campo se usa en el GRUPO para listar sus MIEMBROS
     member_ids = fields.Many2many(
         "res.partner",
         "res_partner_group_members_rel",
         "group_id",
         "member_id",
+        string="Members",
+        help="Members that belong to this consumer group",
+    )
+
+    # Relación inversa: grupos a los que pertenece un MIEMBRO
+    # Este campo se usa en el MIEMBRO para listar sus GRUPOS
+    group_ids = fields.Many2many(
+        "res.partner",
+        "res_partner_group_members_rel",
+        "member_id",
+        "group_id",
         domain=[("is_group", "=", True)],
         string="Consumer Groups",
-        help="Consumer Groups this partner belongs to",
+        help="Consumer groups this partner belongs to",
     )
 
     # Inverse relation: group orders this group participates in

website_sale_aplicoop/models/sale_order_extension.py

@@ -22,7 +22,7 @@ class SaleOrder(models.Model):
 
     pickup_day = fields.Selection(
         selection=_get_pickup_day_selection,
-        help="Day of week when this order will be picked up (inherited from group order)",
+        help="Day of week when this order will be picked up",
     )
 
     group_order_id = fields.Many2one(
@@ -30,13 +30,19 @@ class SaleOrder(models.Model):
         help="Reference to the consumer group order that originated this sale order",
     )
 
+    consumer_group_id = fields.Many2one(
+        "res.partner",
+        domain="[('is_group', '=', True)]",
+        help="Consumer group for this order",
+    )
+
     pickup_date = fields.Date(
-        help="Calculated pickup/delivery date (inherited from consumer group order)",
+        help="Pickup/delivery date",
     )
 
     home_delivery = fields.Boolean(
         default=False,
-        help="Whether this order includes home delivery (inherited from consumer group order)",
+        help="Whether this order includes home delivery",
     )
 
     def _get_name_portal_content_view(self):

website_sale_aplicoop/models/stock_picking_extension.py

@@ -35,10 +35,10 @@ class StockPicking(models.Model):
 
     consumer_group_id = fields.Many2one(
         "res.partner",
-        related="sale_id.partner_id",
+        related="sale_id.consumer_group_id",
         string="Consumer Group",
         store=True,
         readonly=True,
         domain=[("is_group", "=", True)],
-        help="Consumer group (partner) from sale order for warehouse grouping",
+        help="Consumer group (res.partner with is_group=True) from sale order",
     )