feat: 모든 도메인에서 사용할 공통 예외 인터페이스 및 ServiceException 구현

Author: dnzp75

src/main/java/com/example/log4u/common/exception/base/ErrorCode.java

@@ -0,0 +1,9 @@
+package com.example.log4u.common.exception.base;
+
+import org.springframework.http.HttpStatus;
+
+public interface ErrorCode {
+    String name();
+    HttpStatus getHttpStatus();
+    String getErrorMessage();
+}

src/main/java/com/example/log4u/common/exception/base/ServiceException.java

@@ -0,0 +1,15 @@
+package com.example.log4u.common.exception.base;
+
+
+import lombok.Getter;
+
+@Getter
+public class ServiceException extends RuntimeException {
+
+    private final ErrorCode errorCode;
+
+    public ServiceException(ErrorCode errorCode) {
+        super(errorCode.getErrorMessage());
+        this.errorCode = errorCode;
+    }
+}