Add a local SvxReflector Docker lab for headset testing.

Funknetz needs a protocol 2.0 reflector without production credentials; the compose stack and smoke test prove the station can log in and select a talk group.

Co-authored-by: Cursor <cursoragent@cursor.com>

station/lab_reflector_test.go

@@ -0,0 +1,56 @@
+package station_test
+
+import (
+	"context"
+	"net"
+	"os"
+	"strconv"
+	"testing"
+	"time"
+
+	"gitea.neitzel.de/konrad/funknetz/station"
+)
+
+// Lab defaults match svxlink-docker/.env and config/svxreflector.conf.
+const (
+	labHost      = "127.0.0.1"
+	labPort      = 5300
+	labCallsign  = "DL0FN-1"
+	labAuthKey   = "local-lab-secret-change-me"
+	labTalkGroup = 9
+)
+
+func TestConnectsToLabReflector(t *testing.T) {
+	if os.Getenv("FUNKNETZ_LAB") == "0" {
+		t.Skip("FUNKNETZ_LAB=0")
+	}
+	addr := net.JoinHostPort(labHost, strconv.Itoa(labPort))
+	conn, err := net.DialTimeout("tcp", addr, 500*time.Millisecond)
+	if err != nil {
+		t.Skipf("lab reflector not listening on %s: %v", addr, err)
+	}
+	conn.Close()
+
+	path := writeConfigFile(t, configJSON(labHost, labPort, labCallsign, labAuthKey, labTalkGroup))
+	st, err := station.New(station.Options{ConfigPath: path})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ctx, cancel := context.WithTimeout(t.Context(), 15*time.Second)
+	defer cancel()
+	go func() { _ = st.Run(ctx) }()
+
+	state, err := st.Wait(ctx, func(s station.State) bool {
+		return s.Connection == "Connected"
+	})
+	if err != nil {
+		t.Fatalf("did not reach Connected: %v (last state %#v)", err, st.State())
+	}
+	if state.Callsign != labCallsign {
+		t.Fatalf("callsign = %q, want %q", state.Callsign, labCallsign)
+	}
+	if state.TalkGroup != labTalkGroup {
+		t.Fatalf("talkGroup = %d, want %d", state.TalkGroup, labTalkGroup)
+	}
+}