feat: Track node errors on PostHog (#8774)

Co-authored-by: Marcus <marcus@n8n.io>

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

@@ -598,6 +598,7 @@ import { useToast } from '@/composables/useToast';
 import { isEqual, isObject } from 'lodash-es';
 import { useExternalHooks } from '@/composables/useExternalHooks';
 import { useSourceControlStore } from '@/stores/sourceControl.store';
+import { useRootStore } from '@/stores/n8nRoot.store';
 import RunDataPinButton from '@/components/RunDataPinButton.vue';
 
 const RunDataTable = defineAsyncComponent(
@@ -738,12 +739,38 @@ export default defineComponent({
 			this.setDisplayMode();
 			this.activatePane();
 		}
+
+		if (this.hasRunError) {
+			const error = this.workflowRunData?.[this.node.name]?.[this.runIndex]?.error;
+			const errorsToTrack = ['unknown error'];
+
+			if (error && errorsToTrack.some((e) => error.message.toLowerCase().includes(e))) {
+				this.$telemetry.track(
+					`User encountered an error: "${error.message}"`,
+					{
+						node: this.node.type,
+						errorMessage: error.message,
+						nodeVersion: this.node.typeVersion,
+						n8nVersion: this.rootStore.versionCli,
+					},
+					{
+						withPostHog: true,
+					},
+				);
+			}
+		}
 	},
 	beforeUnmount() {
 		this.hidePinDataDiscoveryTooltip();
 	},
 	computed: {
-		...mapStores(useNodeTypesStore, useNDVStore, useWorkflowsStore, useSourceControlStore),
+		...mapStores(
+			useNodeTypesStore,
+			useNDVStore,
+			useWorkflowsStore,
+			useSourceControlStore,
+			useRootStore,
+		),
 		isReadOnlyRoute() {
 			return this.$route?.meta?.readOnlyCanvas === true;
 		},