The installer writes gsd-file-manifest.json to the runtime config root
at install time but uninstall() never removed it, leaving stale metadata
after every uninstall. Add fs.rmSync for MANIFEST_NAME at the end of the
uninstall cleanup sequence.
Regression test: tests/bug-1908-uninstall-manifest.test.cjs covers both
global and local uninstall paths.
Closes#1908
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
3895178c6a