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
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