Added ManualFill mode with a draggable status panel and hotkey-driven correct change preparation. Default hotkey is F.
Added AutoFill mode.
Added AutoComplete mode.
Normalized exact-change payments to avoid money loss.
Updated startup logger banner to AcesGamingUK standard.
Made config section headers more visible.
Replaced the old IMGUI panel with the reusable native-style AcesGamingUK prompt.
Added prompt colour, size, and draggable saved position options.