Enhance BeforeSaveDocumentEvent with type and uid

[brotkrueml]

No description provided.

[brotkrueml]

As suggested in Slack: https://typo3.slack.com/archives/C0C2C2J720J/p1792054478330529

Example for usage to add a preview image for a page depending on a hero content element:

public function __invoke(BeforeSaveDocumentEvent $event): void
{
    if ($event->indexType !== IndexType::Page) {
        return;
    }
    if ($event->uid <= 0) {
        return;
    }

    $heroContent = $this->heroContentRepository->findByPid($event->uid);
    if (!is_array($heroContent)) {
        return;
    }

    $record = $this->recordFactory->createResolvedRecordFromDatabaseRow('tt_content', $heroContent);

    if (count($record->get('image')) === 0) {
        return;
    }

    $event->document['preview'] = $event->site->getBase() . $this->imageScaler->scale($record->get('image')[0], 200);
}

[lochmueller]

hey @brotkrueml
Looks good for me. Merged.

Perhaps the Enum is better places in the Index extension to handle the different types. But we can move this later, if we need it in EXT:index.

Regards,
Tim

[brotkrueml]

Thank you for the quick review :-)