Add a Scheduler Iteration card showing the current phase, active job
type, idle sleep duration, and last iteration result.
Update the Scheduler State table to replace In Flight / Next Detection
/ Interval columns with Status (Processing/Idle) and Max Duration
columns to match the new iteration model.
Add renderSchedulerIterationStatus JS function and update
refreshJobsAndActivities to fetch and render iteration status.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>