The manifest predates #47/#48/#50: the skin updater skipped every
backdrop added in #48 (1884 files), kept fetching 17 changed files on
each launch, and still listed the deleted gumi.lua. Hashes are the
blob bytes (LFS: pointer oid), same as the existing entries.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>