v0.2.2

Fix

HUD activity animation could stay stuck on after `/compact` in a specific case: when the pre-compact turn ended on a tool result rather than a normal assistant reply (e.g. the turn ended via the stop hook), the detector misread that old tool result as an in-flight turn while walking back past the compact scaffolding.

Fixed by treating `system/stop_hook_summary` and `system/compact_boundary` transcript entries as authoritative turn-over markers.