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
+}

pkg/econet/econetgrpc/econet.go

@@ -71,6 +71,17 @@ func (s *EconetGRPCServer) GetDevice(ctx context.Context, req *pb.GetDeviceReque
 	return &pb.GetDeviceResponse{Device: deviceToProto(d)}, nil
 }
 
+// DeviceRawJSON returns the undecoded EcoNet equipment payload for a device,
+// used by the web UI's debug view. ok is false if the serial is unknown or no
+// raw payload was captured. It is a debug accessor, not part of the RPC surface.
+func (s *EconetGRPCServer) DeviceRawJSON(serial string) ([]byte, bool) {
+	d := s.client.Device(serial)
+	if d == nil || len(d.Raw) == 0 {
+		return nil, false
+	}
+	return d.Raw, true
+}
+
 // modeSlugs maps the settable proto Mode enum to the normalized slugs the
 // client (and Device.mode) use. MODE_UNSPECIFIED is intentionally absent;
 // protovalidate rejects it before we get here.
@@ -83,6 +94,21 @@ var modeSlugs = map[pb.Mode]string{
 	pb.Mode_MODE_GAS:           "gas",
 	pb.Mode_MODE_PERFORMANCE:   "performance",
 	pb.Mode_MODE_VACATION:      "vacation",
+	pb.Mode_MODE_ELECTRIC_GAS:  "electric-gas",
+}
+
+// ModeSlug returns the normalized slug for a settable Mode, or "" if unknown.
+func ModeSlug(m pb.Mode) string { return modeSlugs[m] }
+
+// modeFromSlug is the reverse of modeSlugs; ok is false for slugs with no
+// settable enum (e.g. "unknown").
+func modeFromSlug(slug string) (pb.Mode, bool) {
+	for m, s := range modeSlugs {
+		if s == slug {
+			return m, true
+		}
+	}
+	return pb.Mode_MODE_UNSPECIFIED, false
 }
 
 func (s *EconetGRPCServer) SetMode(ctx context.Context, req *pb.SetModeRequest) (