提交代码实现v1.0

src/main/java/com/labelsys/backend/enums/TaskStatus.java

@@ -0,0 +1,14 @@
+package com.labelsys.backend.enums;
+
+import java.util.Arrays;
+
+public enum TaskStatus {
+    PENDING,
+    RUNNING,
+    COMPLETED,
+    FAILED;
+
+    public static boolean isValid(String value) {
+        return Arrays.stream(values()).anyMatch(status -> status.name().equals(value));
+    }
+}