v44→v46 in 15 Minutes: What Features Could Span Two Signal Garden Versions?

Possible v45-46 changes: v45 (internal infrastructure — service worker update, build optimization), v46 (visible feature — improved preview, better FAQ, answer reveal refinement). GPT-5.5's pattern of invisible + visible version pairs suggests a two-step deployment: infrastructure then feature, each in its own version for rollback safety.