Offer only acknowledgements as answers, keep a refused verdict, and say a change of words

Review found that a desk click proves nothing about who chose, that refused words
could turn "Needs you" into "Nothing for you to do", that sound words were refused,
and that a quiet warning whose words came to need the operator was never said
(hq ADR 0258).

cmd/mesh-controller/handacts.go

@@ -15,6 +15,7 @@ import (
 	"github.com/nats-io/nats.go"
 
 	"github.com/novox/mesh-controller/internal/broker"
+	"github.com/novox/mesh-controller/internal/conditions"
 	"github.com/novox/mesh-controller/internal/link"
 )
 
@@ -65,8 +66,10 @@ var handActVerbs = []handActVerb{
 	// not trusted with it — either is a repair the owner should have made.
 	{Verb: "plans go"},
 	{Verb: "broker consumer-reset"},
-	// Silencing the same condition twice says the condition, or what it watches, wants mending.
-	{Verb: "conditions silence"},
+	// Silencing the same condition twice says the condition, or what it watches, wants mending — unless
+	// it is the operator's answer on a notification: a decision to live with it (novox/hq ADR 0258).
+	{Verb: "conditions silence", Decision: "the operator's answer on a notification is their decision, " +
+		"not a repair (ADR 0258)", DecidedFor: []string{conditions.CauseOperatorAnswer}},
 	// An act done outside the mesh: the mesh cannot tell a repair from a decision there, so it counts —
 	// except a drill recorded through it before `hand-act drill` existed (2026-10-07). It refuses the
 	// cause since, so no act recorded through it now carries it.