Feature: Add Auto-Configuration for Thread Usage in `MediaProcessor`

[omeryusufyagci]

Currently, the thread count uses a default value (see MediaProcessor::AudioProcessor()). This improvement aims to allow faster processing times for more capable hardware while ensuring stable operation on all target machines by determining an optimal number of threads.

Objective:

• Automatically determine the number of threads based on hardware capabilities using std::thread::hardware_concurrency().
• Allow users to override this value in config.json for manual control if needed.
• Update the current implementation to use this dynamic value where applicable.

[nikhiljangra264]

I would love to work on this, Could you assign it to me?

[omeryusufyagci]

Hi @nikhiljangra264, thanks for your interest! I've assigned the issue to you.

[nikhiljangra264]

Hello, I have made a PR regarding this. Please take a look and give me suggestions if any.