[API Node] User management (#3567)

Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: Chenlei Hu <hcl@comfy.org>

src/scripts/app.ts

@@ -673,7 +673,17 @@ export class ComfyApp {
     })
 
     api.addEventListener('execution_error', ({ detail }) => {
-      useDialogService().showExecutionErrorDialog(detail)
+      // Check if this is an auth-related error or credits-related error
+      if (detail.exception_message === 'Please login first to use this node.') {
+        useDialogService().showSignInRequiredDialog({ type: 'signIn' })
+      } else if (
+        detail.exception_message ===
+        'Payment Required: Please add credits to your account to use this node.'
+      ) {
+        useDialogService().showSignInRequiredDialog({ type: 'credits' })
+      } else {
+        useDialogService().showExecutionErrorDialog(detail)
+      }
       this.canvas.draw(true, true)
     })