Pass the node-engine and resolver on their third reading, at most two minutes

The operator wants these gates as fast as they can be: counting readings only after
two minutes added about 80 s to every node-engine rollout for no safety. Count
from the send, pass on the third healthy reading, and pass a module healthy at
every reading at two minutes on what it has (novox/hq ADR 0352).

cmd/mesh-controller/gate_test.go

@@ -124,14 +124,14 @@ func aGateMesh(t *testing.T) *gateMesh {
 	}
 	t.Cleanup(func() { gatherGateFacts = wasGather })
 
-	wasSettle, wasEvery, wasBound := gateSettle, gateEvery, gateBound
+	wasWithin, wasEvery, wasBound := gateWithin, gateEvery, gateBound
 	// The witness window is the node-engine's, from a start no test makes (novox/hq ADR 0351).
 	wasWindow := gateWitnessWindow
 	gateWitnessWindow = 0
 	t.Cleanup(func() { gateWitnessWindow = wasWindow })
 	// One judging per advance until a test says otherwise: a pass waits gateEvery for the next.
-	gateSettle, gateEvery = 0, time.Hour
-	t.Cleanup(func() { gateSettle, gateEvery, gateBound = wasSettle, wasEvery, wasBound })
+	gateWithin, gateEvery = time.Hour, time.Hour
+	t.Cleanup(func() { gateWithin, gateEvery, gateBound = wasWithin, wasEvery, wasBound })
 
 	built := time.Now().UTC()
 	plan := inventory.Plan{ID: "plan-gate", Repository: "novox/mesh-catalog", Branch: "main", Commit: "c2",
@@ -276,7 +276,7 @@ func TestABuildThatPassesItsGateRollsEverywhereUnattended(t *testing.T) {
 func TestALeafModulePassesOnOneHealthyReading(t *testing.T) {
 	g := aGateMesh(t)
 	ctx := t.Context()
-	gateSettle = time.Hour    // a core module could not pass for an hour
+	gateWithin = time.Hour    // a core module could not pass on fewer readings for an hour
 	advancePlans(ctx, g.open) // the first machine is sent the new build
 	advancePlans(ctx, g.open) // one healthy judging
 	p := g.plan(t)