added RemoteApiException

backend/src/main/java/com/vaessl/app/exception/RemoteApiException.java

@@ -0,0 +1,11 @@
+package com.vaessl.app.exception;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
+public class RemoteApiException extends RuntimeException {
+
+    private final String appUrl;
+}