fix(mobile): keep mobile question queue positions stable

pendingRequestsAtom dropped settled user-input requests before deriving,
so the queue total shrank as questions were answered. Keep them as inputs,
show the m/n position in each mobile question eyebrow, and drop the unused
secondary markdown tone.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
028a963eadBen Davis committed on 10/24/2026, 5:17:14 AMparent8501b59
4 files changedLine totals unavailable