Added File Transfer Function & Enhanced IoT Server Support

This update adds a file transfer feature that works beyond the UDP-only protocol.
Now you can send and receive files over HTTP, making integration with IoT servers and OSAI-based systems smoother.

　What’s new:

• Added file transfer via HTTP

• Works with standard browsers and IoT environments

• Improved compatibility across Linux systems

Perfect for use with distributed AI systems, robotics, or remote diagnostics.

Only Linux is supported in this version — stay tuned for more.