The checkbox column + Create & Reconcile toolbar setup was on the form's
`refresh` event, which fires only once. On a second "Get Unreconciled
Entries" ERPNext rebuilds the DataTableManager without the checkbox
column and the polling interval never restarted. Moved the enhancement
to the `render` event (fires on every rebuild), matching the pattern
the kapital_bank BRT extension used. The prototype patch that adds the
"Bank Transaction" column stays on `refresh` since it is idempotent.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>