[Feature Request] Syncying tabs across devices.

### Feature Idea

Well, the request is simple. Let’s say I start a run on my PC. I’d like to log in on my phone and see where it is. The problem is that although you can *somewhat* see what it’s doing, you can’t pinpoint **which node** it’s currently running.

This is related to a request I made almost a year ago (that I stupidly forgot to follow up on):
[#3296 - Display workflow progress after re-opening browser tab](https://github.com/comfyanonymous/ComfyUI/issues/3296#event-13545180948)

This would probably also help with **browser refreshes**. If you’re running a workflow and accidentally refresh the page, or the browser just randomly does it, this kind of state syncing would potentially let everything resync and continue displaying correctly.

If there’s already some implementation for this and I’m completely and stupidly missing it, please point me to it.

Also, this sometimes happens when I have **multiple workflow tabs** open. Let’s say I start a run in one tab, and then switch to a second tab to tweak something. When I go back to the tab that’s running, the preview is either glitched or, more commonly, just stops existing entirely.

A **button** would be nice! Maybe something that triggers the sampler to update or "interrupt" at the next step — not a full cancel, just enough to get the preview to show again. That would be totally fine.

### Existing Solutions

_No response_

### Other

_No response_