* fix(#2771): unify user-owned-artifacts list to suppress false patches warning
USER-PROFILE.md was both preserved across reinstalls (correctly) AND tracked in
gsd-file-manifest.json (incorrectly). On the next install, saveLocalPatches()
hashed the on-disk file, found it differed from the stale manifest hash (because
/gsd-profile-user --refresh regenerated it), and reported it as a "locally
modified GSD file" — a spurious warning every time the profile refreshed.
A file is either distribution (manifest-tracked, diff'd against manifest) or
user artifact (preserved across installs, never diff'd). Never both. This
extracts USER_OWNED_ARTIFACTS as a single source of truth, referenced by both
the preserveUserArtifacts call site and writeManifest, so the invariant cannot
drift again.
Adds a regression test that exercises the full reproduction path: install,
create USER-PROFILE.md, reinstall, refresh USER-PROFILE.md, reinstall, assert
no patch backup and no warning text.
Closes#2771
* test(#2771): use centralized helpers from helpers.cjs per CONTRIBUTING
* fix(#2771): normalize legacy USER_OWNED_ARTIFACTS entries from manifest + tighten test
290c8b2909