fix: preserve jt808 registration metadata

modules/protocols/protocol-jt808/src/test/java/com/lingniu/ingest/protocol/jt808/inbound/Jt808ChannelHandlerTest.java

@@ -237,6 +237,53 @@ class Jt808ChannelHandlerTest {
         eventBus.close();
     }
 
+    @Test
+    void registerArchivePreservesRegistrationFieldsInMetadata() throws Exception {
+        RecordingSink sink = new RecordingSink(1);
+        DisruptorEventBus eventBus = new DisruptorEventBus(1024, "blocking", List.of(sink));
+        AsyncBatchExecutor batchExecutor = new AsyncBatchExecutor(eventBus::publish);
+        Dispatcher dispatcher = new Dispatcher(
+                new HandlerRegistry(),
+                new InterceptorChain(List.of()),
+                new HandlerInvoker(),
+                eventBus,
+                batchExecutor);
+        InMemoryVehicleIdentityService identity = new InMemoryVehicleIdentityService();
+        Jt808ChannelHandler handler = new Jt808ChannelHandler(
+                new Jt808MessageDecoder(new BodyParserRegistry(List.of(new RegisterBodyParser()))),
+                dispatcher,
+                new InMemorySessionStore(),
+                identity,
+                new Jt808ChannelRegistry(),
+                new Jt808PendingRequests());
+        EmbeddedChannel channel = new EmbeddedChannel(handler);
+        byte[] frame = buildFrame(
+                Jt808MessageId.TERMINAL_REGISTER,
+                "123456789012",
+                1,
+                buildRegisterBody("DEV808", "B80808"));
+
+        channel.writeInbound(frame);
+
+        assertThat(sink.await()).isTrue();
+        assertThat(sink.events).singleElement().satisfies(event -> {
+            assertThat(event).isInstanceOf(VehicleEvent.RawArchive.class);
+            VehicleEvent.RawArchive archive = (VehicleEvent.RawArchive) event;
+            assertThat(archive.command()).isEqualTo(Jt808MessageId.TERMINAL_REGISTER);
+            assertThat(archive.metadata())
+                    .containsEntry("jt808.register.province", "44")
+                    .containsEntry("jt808.register.city", "4401")
+                    .containsEntry("jt808.register.maker", "MAKER")
+                    .containsEntry("jt808.register.deviceType", "TYPE-A")
+                    .containsEntry("jt808.register.deviceId", "DEV808")
+                    .containsEntry("jt808.register.plateColor", "1")
+                    .containsEntry("jt808.register.plate", "B80808");
+        });
+
+        batchExecutor.close();
+        eventBus.close();
+    }
+
     @Test
     void malformedFrameIsArchivedAndDispatchedAsPassthrough() throws Exception {
         RecordingSink sink = new RecordingSink(2);

modules/protocols/protocol-jt808/src/test/java/com/lingniu/ingest/protocol/jt808/mapper/Jt808EventMapperTest.java

@@ -133,6 +133,30 @@ class Jt808EventMapperTest {
                 .first().isInstanceOf(VehicleEvent.Heartbeat.class);
     }
 
+    @Test
+    void registerBodyPreservesRegistrationFieldsInMetadata() {
+        var header = new Jt808Header(
+                Jt808MessageId.TERMINAL_REGISTER, 37, 0, false,
+                Jt808Header.ProtocolVersion.V2013, "123456789012", 1, 0, 0);
+        var body = new Jt808Body.Register(
+                44, 1, "G7", "MODEL-X", "DEV123456", 2, "粤B12345");
+
+        List<VehicleEvent> events = mapper.toEvents(new Jt808Message(header, body));
+
+        assertThat(events).singleElement()
+                .satisfies(event -> {
+                    assertThat(event).isInstanceOf(VehicleEvent.Login.class);
+                    assertThat(event.metadata())
+                            .containsEntry("jt808.register.province", "44")
+                            .containsEntry("jt808.register.city", "1")
+                            .containsEntry("jt808.register.maker", "G7")
+                            .containsEntry("jt808.register.deviceType", "MODEL-X")
+                            .containsEntry("jt808.register.deviceId", "DEV123456")
+                            .containsEntry("jt808.register.plateColor", "2")
+                            .containsEntry("jt808.register.plate", "粤B12345");
+                });
+    }
+
     @Test
     void unregisterBodyProducesLogoutEvent() {
         var header = new Jt808Header(