problem

Temporary files below APPLICATION_DATA/tmp are created by several translate5 features, but there is no generic daily cleanup for stale leftovers in that directory. Existing cleanup jobs only cover specific domains, for example queued exports or date-based integration folders.

Additionally, VisualReview font processing can leave fnt* files below PHP's system temp directory. Those files originate in the third-party phenx/php-font-lib WOFF handling, which creates temp files with sys_get_temp_dir() and does not expose the generated filename to translate5 for cleanup. See https://github.com/dompdf/php-font-lib/issues/159.

solution

Extend the existing daily cleanup flow with two targeted cleanup steps:

• Add a safe timestamp-based cleanup for "APPLICATION_DATA/tmp" and/or runtimeOptions.dir.tmp. It must only delete stale files and empty directories older than a conservative threshold, and it must protect known long-lived runtime entries such as worker sockets/FIFOs or other explicitly excluded files (worker.fifo).
• Add a daily timestamp-based cleanup for fnt* files below sys_get_temp_dir(), limited to stale files only, as workaround for the php-font-lib cleanup issue referenced above.

The implementation should reuse the existing cleanup infrastructure where appropriate, keep the cleanup daily only, and add focused tests for the deletion threshold and exclusion behaviour.