Module watcher 

Structs

WatchHandle

Handle returned to the caller. Keeps the watch loop alive. Drop it or call stop() to shut down the watcher.

Enums

WatchEvent

Events emitted by the watch loop — consumed by the caller (CLI / UI).

Functions

watch_pair

Start watching a named pair. Returns a WatchHandle immediately. The on_event callback is called from the watch thread for each event.