Set QoS to USER_INTERACTIVE for socket queues

[strangewiz]

The dispatch queues for socket connection and channel handling were created with the default Quality of Service (QoS) class. This can lead to priority inversion, where critical eDO communication is delayed by lower-priority background tasks, causing UI unresponsiveness or test flakiness.

This change explicitly sets the QoS for these queues to QOS_CLASS_USER_INTERACTIVE. This ensures that work scheduled on these queues is given high priority by the system, improving the responsiveness and reliability of eDO-based communication.