add ui, new config opts

pkg/econet/econetgrpc/device.go

@@ -27,5 +27,18 @@ func deviceToProto(d *econetclient.Device) *pb.Device {
 		AlertCount:           int32(d.AlertCount),
 		Away:                 d.Away,
 		LastUpdated:          timestamppb.New(d.LastUpdated),
+		SupportedModes:       supportedModes(d.SupportedModes()),
 	}
 }
+
+// supportedModes maps the device's mode slugs to proto enums, dropping any that
+// aren't settable (e.g. "unknown").
+func supportedModes(slugs []string) []pb.Mode {
+	out := make([]pb.Mode, 0, len(slugs))
+	for _, slug := range slugs {
+		if m, ok := modeFromSlug(slug); ok {
+			out = append(out, m)
+		}
+	}
+	return out
+}