The LiveTable on /admin/contact-edits used the bare ContactEdit schema
as its data source, which caused three symptoms:
- '0 pending' counter but stale approved/rejected edits still visible
- Blank contact/submitted-by cells (select_columns stripped preloaded
associations, cell renderers received flat maps with no :contact/:user)
- Approve/reject didn't remove the row from the table
Fix: assign {Radio, :pending_edits_query, []} as the data_provider in
mount so handle_params threads it to stream_resources. The query variant
of list_resources preserves preloaded associations and includes the
WHERE status = :pending filter.
Added two tests that verify the table rendering and edit removal.