feat: Add env variables to support exposing /workflows/demo route and /nodes.json route (#8506)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/editor-ui/src/views/NodeView.vue

@@ -805,13 +805,16 @@ export default defineComponent({
 		this.clipboard.onPaste.value = this.onClipboardPasteEvent;
 
 		this.canvasStore.startLoading();
-		const loadPromises = [
-			this.loadActiveWorkflows(),
-			this.loadCredentials(),
-			this.loadCredentialTypes(),
-			this.loadVariables(),
-			this.loadSecrets(),
-		];
+		const loadPromises =
+			this.settingsStore.isPreviewMode && this.isDemo
+				? []
+				: [
+						this.loadActiveWorkflows(),
+						this.loadCredentials(),
+						this.loadCredentialTypes(),
+						this.loadVariables(),
+						this.loadSecrets(),
+				  ];
 
 		if (this.nodeTypesStore.allNodeTypes.length === 0) {
 			loadPromises.push(this.loadNodeTypes());