RayFrame Serial Bridge door Mohd Firdaus

RayFrame Serial Bridge routes USB serial communication through a dedicated background thread, preventing the stuttering and jerky movement that occurs during laser engraving when using Firefox's native Web Serial API.

Required for RayFrame Studio (studio.rayframe.xyz) users on Firefox. Chrome and Edge users do not need this add-on.

How it works:
- Intercepts serial port requests from RayFrame Studio
- Handles all USB I/O in a background thread separate from the UI
- Keeps the GRBL laser controller's buffer full for smooth, uninterrupted engraving

Requirements:
- Firefox 140 or later
- RayFrame Studio account at studio.rayframe.xyz