internal/holdreport: one observer of the hold store, ticked every minute; app_held for a new or changed
hold (stack_name, reason, since, why), app_hold_cleared when gone (also while the controller was down:
settings.reported_holds), every hold again daily and at start. Severity info. RestoreHold.Why/WireReason
(holdWhy calls it). 8 tests, red-proved (inert Tick; unwired scheduler line). Commit only (felhom.eu 08 §10).
admin