update to node site

website/scripts/nodes/ButtonNode.js

@@ -0,0 +1,43 @@
+/**
+ * @file ButtonNode.js
+ * @UCLASS(BlueprintType, Blueprintable)
+ */
+
+import { NodeBase } from './NodeBase.js';
+import { NodeRegistry } from './NodeRegistry.js';
+
+/**
+ * @UCLASS(BlueprintType)
+ * Renders a play button in the header that triggers node execution.
+ */
+export class ButtonNode extends NodeBase {
+    /** @UCLASS(BlueprintType) */
+    static NodeType = "button";
+
+    /**
+     * @UFUNCTION(BlueprintNativeEvent)
+     * @param {HTMLElement} article
+     * @param {import('../GraphNode.js').GraphNode} graphNode
+     * @param {import('./NodeRenderContext.js').NodeRenderContext} renderCtx
+     */
+    BlueprintNativeEvent_OnRender(article, graphNode, renderCtx) {
+        const header = article.querySelector(".node-header");
+        if (!header) return;
+
+        const btn = document.createElement("button");
+        btn.className = "node-run-btn";
+        btn.title = "Execute";
+        btn.innerHTML = `<svg width="9" height="9" viewBox="0 0 9 9" fill="currentColor" aria-hidden="true"><polygon points="1,0 9,4.5 1,9"/></svg>`;
+
+        btn.addEventListener("click", (e) => {
+            e.stopPropagation();
+            renderCtx.BlueprintCallable_TriggerNodeExecute(graphNode.id);
+            btn.classList.add("node-run-btn--flash");
+            btn.addEventListener("animationend", () => btn.classList.remove("node-run-btn--flash"), { once: true });
+        });
+
+        header.appendChild(btn);
+    }
+}
+
+NodeRegistry.UCLASS_Register(ButtonNode);