fix: Initial state fix - fetch data and block executions until completed

src/main/java/eu/ztsh/lfr/model/events/FileModifiedEvent.java

@@ -1,5 +1,11 @@
 package eu.ztsh.lfr.model.events;
 
-public record FileModifiedEvent(long timestamp) {
+import org.springframework.context.ApplicationEvent;
+
+public class FileModifiedEvent extends ApplicationEvent {
+
+    public FileModifiedEvent(Object source) {
+        super(source);
+    }
 
 }