fix: the search schedule logs its state when it changes, so an idle pass says why (M502 #5521)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/wanted/search_test.go

@@ -194,3 +194,20 @@ func TestGrabs_OneLivePerWant_Integration(t *testing.T) {
 		t.Errorf("live = %+v %v %v", live, ok, err)
 	}
 }
+
+func TestReport_StateNamesWhyAPassWasQuiet(t *testing.T) {
+	for _, c := range []struct {
+		rep  Report
+		want string
+	}{
+		{Report{Off: true}, "off"},
+		{Report{Unconfigured: true}, "unconfigured"},
+		{Report{Error: "boom"}, "failed"},
+		{Report{}, "idle"},
+		{Report{Looked: 2, Grabbed: 1}, "searched"},
+	} {
+		if got := c.rep.state(); got != c.want {
+			t.Errorf("%+v: state = %q, want %q", c.rep, got, c.want)
+		}
+	}
+}