MAINT-28: shorter test_maint28 runs (892 s -> ~280 s), digests re-pinned on 1b5f7c9; hold kept through the two short holds (documented); DECISIONS duplicate removed

Co-Authored-By: Claude <noreply@anthropic.com>

goodwe_controller/app/ctl_cycle.py

@@ -537,7 +537,9 @@ class CycleMixin:
 
         # maintenance  ⚠️ ONE PASS PER PACK, AND `arbitrate()` IS WHY THE LIST
         # STAYS SHORT. (DECISIONS/MAIN-orchestration-archive.md)
-        # MAINT-28: the hold lives only while the charge-only branch is taken.
+        # MAINT-28: the hold lives only while the charge-only branch is taken;
+        # kept through the two short holds above on purpose
+        # (DECISIONS/MAINT-28-hold-the-pause-in-a-peak.md).
         _peak_held, self._maint_peak_hold = self._maint_peak_hold, False
         for inv, result in zip(self.inverters, maint_results):
             if result.owns_setpoint: