Archives two changes that were missing complete requirement content in their
spec deltas, which would have caused data loss during archival:
1. add-antigravity-support: Adds Antigravity IDE support to cli-init and
cli-update with proper workflow file generation in `.agent/workflows/`
2. fix-cline-workflows-implementation: Corrects Cline paths from `.clinerules/`
to `.clinerules/workflows/` to match Cline's official workflow conventions
Both deltas were fixed to include all 15 slash command scenarios (14 existing +
1 new Antigravity) to prevent loss of existing requirements when archived.
Tabish Bidiwale
c47cdaafe2