Miguel Palhas
1199596528
Action::OpenSpawnModal becomes NewDraftPane: pressing s turns the empty pane into an inline draft form (or opens a new tab when the pane shows a session). The form is a pane-level widget with its own field focus; a successful submit replaces the draft with the new session in place, matching the web client's draft panes. SpawnModal and OverlayKind::Spawn are removed; kill-confirm and help overlays stay.