Added ServerResourcesReloadedEvent

paper-api/src/main/java/io/papermc/paper/event/server/ServerResourcesReloadedEvent.java

@@ -0,0 +1,47 @@
+package io.papermc.paper.event.server;
+
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.server.ServerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Called when resources such as datapacks are reloaded (e.g. /minecraft:reload)
+ * <p>
+ * Intended for use to re-register custom recipes, advancements that may be lost during a reload like this.
+ */
+@NullMarked
+public class ServerResourcesReloadedEvent extends ServerEvent {
+
+    public static final HandlerList HANDLER_LIST = new HandlerList();
+
+    private final Cause cause;
+
+    @ApiStatus.Internal
+    public ServerResourcesReloadedEvent(final Cause cause) {
+        this.cause = cause;
+    }
+
+    /**
+     * Gets the cause of the resource reload.
+     *
+     * @return the reload cause
+     */
+    public Cause getCause() {
+        return this.cause;
+    }
+
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    public enum Cause {
+        COMMAND,
+        PLUGIN,
+    }
+}