MainWP Child 6.4.2-rc.2

Added: RunCache detection and cache-purge dispatch while preserving RunCloud Hub support.

Fixed: TAR restore extraction of filenames containing literal question marks, preserving original names and file contents.

Fixed: Pre-restore safety backups failing when cache files change during TAR archive creation.

Fixed: Known backup locations exclusions for All-in-One WP Migration, UpdraftPlus, and Duplicator folders.

Fixed: Site Hardening Unfix reporting.

Updated: Tracked password changes without temporarily storing password hashes.

Updated: Corrected Password Policy documentation to describe password-change reminders.