process Directory Reference

Files
	i_process.h
	IProcess — read-only interface for external consumers of process info.
	pcb.h
	Process Control Block — metadata for a single process.
	priority.h
	Process priority levels and the Priority struct.
	process_image.h
	ProcessImage — the full in-memory representation of a process.
	state.h
	ProcessState enum class and validated state transitions.