feat: Implement friendly match management with socket integration and UI updates

mobile-app/shared/src/commonMain/kotlin/de/tsschulz/tt_tagebuch/shared/api/SocketService.kt

@@ -34,6 +34,11 @@ class SocketService(private val socketUrl: String) {
             val data = args[0] as JSONObject
             _events.tryEmit("diary:note:added" to data)
         }
+
+        socket?.on("schedule:match:updated") { args ->
+            val data = args[0] as JSONObject
+            _events.tryEmit("schedule:match:updated" to data)
+        }
         
         // Add more events as needed