fix(fusion_authorizer_portal): res.users.groups_id -> all_group_ids for Odoo 19

Odoo 19 renamed the m2m-to-groups fields on res.users:
- groups_id (Odoo <=18) was split into group_ids (direct) +
  all_group_ids (direct + implied)

The /book-assessment route was raising KeyError: 'groups_id' on every hit,
returning HTTP 500. Switched to all_group_ids so any user with the sales
salesman group access (direct OR via implied manager/admin groups) is
matched when resolving available sales reps.

Verified by curl: /book-assessment now returns HTTP 200.

Made-with: Cursor

fusion_authorizer_portal/controllers/portal_assessment.py

@@ -1030,7 +1030,7 @@ class AssessmentPortal(CustomerPortal):
         sales_reps = []
         if SalesGroup:
             sales_reps = request.env['res.users'].sudo().search([
-                ('groups_id', 'in', [SalesGroup.id]),
+                ('all_group_ids', 'in', [SalesGroup.id]),
                 ('active', '=', True),
             ])