- Title always left-aligned (was centered via 3-col flex trick)
- In kiosk mode: exit/refresh buttons appear left of title via header-left
- All action buttons unified as .header-btn (42×42px, consistent style)
- Scan button: 48×48px + pulse animation to stand out from others
- Gemini button: no longer misuses header-scan-btn class; own indigo tint
- Scale status: same 42×42px .header-btn shape with colored .scale-dot
inside instead of a tiny 22px standalone circle
- Update notification: uses #header-update-badge beside the title instead
of replacing title innerHTML (title never disappears anymore)
- Fixed _scaleUpdateStatus() to preserve header-btn class on className reset
dadaloop82
bc0beea090