Refactor: Remove dynamic port allocation (portsManager) and use single server port for streaming #3
Description
The current implementation dynamically allocates a new port for every song stream (via portsManager). This is complex, error-prone, and doesn't integrate well with Kubernetes (where only explicitly exposed ports are reachable).
Proposal
- Remove portsManager and all dynamic port assignments.
- Handle all streaming and client-server commands over the main server port.
This will simplify the code and network architecture, improve maintainability and make this project more compatible with cloud deployments.