feat(telemetry): help center and workflow creation (#6505)

## Summary

For Cloud distribution:
1. Track help center usage
2. Track workflow creation

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6505-feat-telemetry-help-center-and-workflow-creation-29e6d73d36508185af8ccbf19d5af9e7)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Christian Byrne <chrbyrne96@gmail.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>
Co-authored-by: Claude <noreply@anthropic.com>

src/platform/telemetry/providers/cloud/MixpanelTelemetryProvider.ts

@@ -15,6 +15,9 @@ import type {
   ExecutionContext,
   ExecutionErrorMetadata,
   ExecutionSuccessMetadata,
+  HelpCenterClosedMetadata,
+  HelpCenterOpenedMetadata,
+  HelpResourceClickedMetadata,
   NodeSearchMetadata,
   NodeSearchResultMetadata,
   PageVisibilityMetadata,
@@ -28,6 +31,7 @@ import type {
   TemplateLibraryMetadata,
   TemplateLibraryClosedMetadata,
   TemplateMetadata,
+  WorkflowCreatedMetadata,
   WorkflowImportMetadata
 } from '../../types'
 import { TelemetryEvents } from '../../types'
@@ -277,6 +281,22 @@ export class MixpanelTelemetryProvider implements TelemetryProvider {
     this.trackEvent(TelemetryEvents.TEMPLATE_FILTER_CHANGED, metadata)
   }
 
+  trackHelpCenterOpened(metadata: HelpCenterOpenedMetadata): void {
+    this.trackEvent(TelemetryEvents.HELP_CENTER_OPENED, metadata)
+  }
+
+  trackHelpResourceClicked(metadata: HelpResourceClickedMetadata): void {
+    this.trackEvent(TelemetryEvents.HELP_RESOURCE_CLICKED, metadata)
+  }
+
+  trackHelpCenterClosed(metadata: HelpCenterClosedMetadata): void {
+    this.trackEvent(TelemetryEvents.HELP_CENTER_CLOSED, metadata)
+  }
+
+  trackWorkflowCreated(metadata: WorkflowCreatedMetadata): void {
+    this.trackEvent(TelemetryEvents.WORKFLOW_CREATED, metadata)
+  }
+
   trackWorkflowExecution(): void {
     const context = this.getExecutionContext()
     this.trackEvent(TelemetryEvents.EXECUTION_START, context)