REPLACE AtomicProgress with simple ProgressTracker

src/main/java/com/ddf/vodsystem/dto/ProgressTracker.java

@@ -0,0 +1,19 @@
+package com.ddf.vodsystem.dto;
+
+import lombok.Getter;
+
+@Getter
+public class ProgressTracker {
+    private float progress;
+
+    public ProgressTracker(float initialProgress) {
+        this.progress = initialProgress;
+    }
+
+    public void setProgress(float newProgress) {
+        if (newProgress < 0 || newProgress > 1) {
+            throw new IllegalArgumentException("Progress must be between 0 and 1");
+        }
+        this.progress = newProgress;
+    }
+}