Replace the custom module's continuous getline() worker with the new GLib-backed command stream helper.
This moves line delivery, child exit handling, and restart scheduling onto the main loop so continuous commands no longer depend on a blocking FILE* read inside SleeperThread.
The behavior is kept aligned with the old module semantics: stdout lines still emit updates, non-zero exits still surface as errors, and restart-interval still respawns the command.
Signed-off-by: Austin Horstman <khaneliman12@gmail.com>
Austin Horstman
5f4b96ad1d