Route group avatar snapshots separately from feedback changes

tools/chatgui-android/app/src/test/java/com/utun/chat/data/ChatEventContractTest.kt

@@ -22,4 +22,9 @@ class ChatEventContractTest {
         assertTrue("JNI snapshot event must have a named declaration: $emitted", emitted in events)
         assertEquals("duplicate event numbers in chat_event.h", events.size, events.values.toSet().size)
     }
+
+    @Test fun kotlinSnapshotNumberMatchesTheNativeRegistryAndEmitter() {
+        assertEquals(events.getValue("CHAT_EVT_GROUP_AVATAR_SNAPSHOT"), AvatarProtocol.GROUP_SNAPSHOT_EVENT)
+        assertEquals(snapshotEvent, AvatarProtocol.GROUP_SNAPSHOT_EVENT)
+    }
 }