goldenChat base source add

backend/src/main/java/com/goldenchart/dto/UpbitApiCredentials.java

@@ -0,0 +1,11 @@
+package com.goldenchart.dto;
+
+import lombok.Builder;
+
+@Builder
+public record UpbitApiCredentials(String accessKey, String secretKey) {
+    public boolean isComplete() {
+        return accessKey != null && !accessKey.isBlank()
+                && secretKey != null && !secretKey.isBlank();
+    }
+}