M-RustHub 1.1.1

Bug-fix release focused on button remapping and GUI polish.

Button remapping

• "Disabled" now actually disables the button. It is now written to the mouse using the same encoding as the official MCHOSE driver.
• The left button can no longer be remapped. The mouse firmware ignores changes to it, so the app used to show a new action while the button kept left-clicking. The GUI now shows it as a locked row, and set-button 1 fails with a clear error (the official driver blocks it too).

GUI

• The window no longer grows taller than the screen: its height is capped to the monitor work area, and the content scrolls.
• Clicking a DPI row behind an open dropdown no longer changes the selection.
• An unsaved scroll direction change survives a mouse reconnect.
• Factory reset now also resets the scroll direction.
• The app version is shown in the window title.

CLI

• status lists only the active DPI stages.
• set-button help and error messages now list the disabled action.
• README: how to make the shell wait for output and the exit code (| Out-Host in PowerShell, start /wait in cmd).

Other

• Internal cleanup: the Win32 calls now use windows-sys instead of hand-written bindings, and the HID worker moved into its own module.