OpenOptions 0.3.0

• C++ agent: HID++ over hidraw, uinput actions, focus tracking (X11, GNOME, Sway), JSON RPC on a UNIX socket, Bolt pairing, battery history, config backups
• Electron UI: buttons, gestures editor, point and scroll, thumb wheel, keys with photo hotspots, backlight timers, Easy-Switch with host rename, per-application profiles, notifications and on-screen overlays, built-in emoji picker, tray status panel, first-run setup
• Supported: MX Master 3S and MX Keys S on a Bolt receiver (Bluetooth uses the same path, less tested)
• Python reference implementation of the agent, CLI client, udev rule, systemd user unit

See the README for build and install steps.