feat(common): add exception handling and response utilities

backend project initial！！！

weblog-module-common/src/main/java/com/hanserwei/common/enums/ResponseCodeEnum.java

@@ -0,0 +1,23 @@
+package com.hanserwei.common.enums;
+
+import com.hanserwei.common.exception.BaseExceptionInterface;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public enum ResponseCodeEnum implements BaseExceptionInterface {
+
+    // ----------- 通用异常状态码 -----------
+    SYSTEM_ERROR("10000", "出错啦，后台小哥正在努力修复中..."),
+    PARAM_NOT_VALID("10001", "参数错误"),
+
+    // ----------- 业务异常状态码 -----------
+    ;
+
+    // 异常码
+    private final String errorCode;
+    // 错误信息
+    private final String errorMsg;
+
+}