Single Consumer Lock-Free Queue in Kotlin

Kotlin implementation of a lock-free queue with a single reader and multiple writers. The queue is based on a singly linked list with a sentinel node at the head.

The queue supports:

• enqueue (thread-safe)
• dequeue (not thread-safe)
• peek (thread-safe)
• isEmpty (thread-safe)

The project includes tests using Lincheck to ensure the correctness of the queue operations.