Task: Implement CancellationToken Usage Without Throwing/Catching Exceptions in C

Task: Implement CancellationToken Usage Without Throwing/Catching Exceptions in C: a task in Terminal-Lego-15k (Harbor dataset). Create a C console application that demonstrates how to use CancellationToken to cancel a worker thread without relying on ThrowIfCancellationRequested() and exception…

The task

Create a C# console application that demonstrates how to use `CancellationToken` to cancel a worker thread **without** relying on `ThrowIfCancellationRequested()` and exception handling. Instead, use the `IsCancellationRequested` property to gracefully exit the worker loop.

Part of PrimeIntellect/Terminal-Lego-15k.