NCBACK-33 add email send

src/main/java/ru/soune/nocopy/entity/file/ContentStatus.java

@@ -0,0 +1,20 @@
+package ru.soune.nocopy.entity.file;
+
+import lombok.Getter;
+
+@Getter
+public enum ContentStatus {
+    PROCESSING("processing"),
+    COMPLETED("completed"),
+    ERROR("error");
+
+    private final String code;
+
+    ContentStatus(String code) {
+        this.code = code;
+    }
+
+    public String getCode() {
+        return code;
+    }
+}