feat(core): Update LLM applications building support (no-changelog) (#7418)

extracted out of #7336

---------

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>
Co-authored-by: OlegIvaniv <me@olegivaniv.com>
Co-authored-by: Jan Oberhauser <janober@users.noreply.github.com>
Co-authored-by: Val <68596159+valya@users.noreply.github.com>
Co-authored-by: Alex Grozav <alex@grozav.com>
Co-authored-by: Deborah <deborah@starfallprojects.co.uk>
Co-authored-by: Jesper Bylund <mail@jesperbylund.com>
Co-authored-by: Jon <jonathan.bennetts@gmail.com>

packages/editor-ui/src/components/NodeExecuteButton.vue

@@ -98,6 +98,9 @@ export default defineComponent({
 			return this.uiStore.isActionActive('workflowRunning');
 		},
 		isTriggerNode(): boolean {
+			if (!this.node) {
+				return false;
+			}
 			return this.nodeTypesStore.isTriggerNode(this.node.type);
 		},
 		isManualTriggerNode(): boolean {