The sidebar "+" ran startFreshSessionDraft, so it replaced whatever was on
screen — ⌘N behavior. With a conversation already open (possibly mid-turn)
that discards it to make room for a blank draft, which is not what a create
affordance should do. The tab-strip "+" and ⌘T already stack a new tab.
Route the sidebar button through the same path once a session is loaded,
falling back to the fresh-draft path when the surface is empty and there is
no tab worth preserving. openNewSessionTile now takes an optional cwd so the
new tab stays anchored to the clicked project/worktree lane.
Brooklyn Nicholson
bd86ce9938