All four upload code paths (storeDocument, createDocument, updateDocument,
attachFile) now call thumbnailAsyncRunner.dispatchAfterCommit(id) after
the document save. createDocument and updateDocument only dispatch when a
file was actually provided/replaced.
The dispatch is afterCommit-safe: if the surrounding @Transactional
method rolls back, no thumbnail is generated for a document that never
reached the DB.
Refs #307
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
7d0e13c591