Release 2.9.8: Fix tarball to include all necessary files

Add project funding and support information

Fix: Make test-space-home.sh executable for CI

Update maintainer email address

Modernize RPM spec file for current distributions

Add bash completion support

Fix Makefile sed pattern to avoid spurious periods in man page

Fix spaces in HOME directory and username handling

Address #185 by using "-s" option with ssh-agent to ensure Bourne-compatible output.

Add .gitattributes to preserve Unix-style linefeeds; small typo fix.

release: soft fail create if release exists; suggest make release-refresh, release-notes.sh +x.

Fix provenance preview on release.

release: always regenerate notes (with provenance) on release-refresh

release: canonical CI artifact selection, provenance table in notes, updated docs & changelog

API: fix curl header quoting to prevent token leakage (Bearer header split issue)