create-position-columnlisted

# create-position-column ## Instructions 1. Add `PositionColumn` as the second column (after BulkActionColumn) in the Grid Definition. 2. Configure the position update route: `->setOption('update_method', 'POST')->setOption('update_route', 'admin_{domain}s_update_position')`. 3. Create the `admin_{domain}s_update_position` POST route in the routing YAML (see `create-admin-routing` skill). 4. In the controller, handle the AJAX position update: receive `positions[]` array, dispatch `UpdatePosition{Domain}Command` (or use QueryBuilder directly). 5. In the repository, update the `position` column for the moved entities. ## Rules Column ordering conventions (PositionColumn as second column) are in [Grid/CONTEXT.md](../../CONTEXT.md#column-definitions). Skill-specific reminders: - Position updates are always AJAX — return JSON response, not redirect - Position values start at 0 or 1 — be consistent with existing PS convention