Earlier <tree>→<list> pass missed the ir.actions.act_window.view_mode field. Clicking the Family Law Cases menu raised "View types not defined tree found in act_window action 549" in the Odoo 18 client. Updated all 17 view_mode declarations across 12 view files (tree→list, preserves kanban/calendar/form pieces). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>