Bug Fix
Fixed column actions losing their column context on form submit — When using columnActions() with a CreateAction (or any action with a modal form), the column ID was not passed through the Livewire roundtrip. This caused new records to be created without knowing which column's + button was clicked.
Root cause: getBoardColumnActions() used $action->arguments() instead of the __invoke() pattern. While both work in Filament v3, using __invoke() is the correct API and ensures forward compatibility with Filament v5.
Fix: Switched to $action(['column' => $columnId]) (the __invoke pattern).
Full Changelog: v3.0.3...v3.0.4