1.	Priority Queue Implementation:
•	Replaced the manual linked list traversal for priority insertion with a cleaner structure.
•	Improved job insertion logic to maintain priority order efficiently.
2.	Thread Safety Considerations:
•	Updated with comments to highlight potential upgrades, such as atomic operations (CAS) for multi-threaded environments.
3.	Improved Readability:
•	Modularized code into smaller, logical functions for better maintainability.
•	Simplified repetitive patterns and clarified type usage.
4.	Backward Compatibility:
•	Ensures no breaking changes, maintaining compatibility with existing systems.
•	The UnownedJob and QueueState interfaces remain unchanged.

•	Introduce atomic operations (CAS) for a fully thread-safe implementation.
•	Consider replacing the custom priority queue with a standard library implementation if/when it becomes available.