Task: Implement WebSocket Broadcaster

[kimit0310]

Description

Implement the Broadcaster class for real-time data streaming to browser clients. I will need to create the core class that reads data from the presenter and broadcasts it as JSON frames to all connected WebSocket clients.

Tasks

• Create a Broadcaster class with start(), stop(), and a _run() broadcast loop.
• The loop should format data from all active inlets into a JSON structure and send it to clients.
• Unit tests for the broadcaster's lifecycle, data formatting, and client management.

Freeform Notes

No response