sale_order_route: fix crash upon module installation and add route_id in sale.report

sale_stock_usability: direct access to warehouse_id in the sale.report pivot view

sale_order_route/models/sale_report.py

@@ -0,0 +1,21 @@
+# Copyright 2024 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class SaleReport(models.Model):
+    _inherit = "sale.report"
+
+    route_id = fields.Many2one('stock.route', string='Route', readonly=True)
+
+    def _select_additional_fields(self):
+        res = super()._select_additional_fields()
+        res['route_id'] = "s.route_id"
+        return res
+
+    def _group_by_sale(self):
+        res = super()._group_by_sale()
+        res += ', s.route_id'
+        return res