Module progress 

Progress reporting system for data loading operations

Provides a shared observable for monitoring load operations in TUI/REPL. Uses a lock-free queue for progress events and broadcast channel for subscribers.

Structs

ProgressHandle

Handle for reporting progress on a specific operation

ProgressRegistry

Global registry for progress events

Enums

LoadPhase

Phase of a load operation

ProgressEvent

Progress event emitted during data loading

ProgressGranularity

Granularity of progress reporting