RFC: Lightweight system tray app for Fishnet

Nobody has claimed this yet.

I'm currently running Fishnet on a spare (and weak) VPS, but my Windows desktop (much more powerful) is often idle. I'm a power user, but running it there isn’t as straightforward as just spinning up Docker on a VPS, so that extra capacity just goes unused. Windows is particularly annoying since you can't just start any executable as a service, unlike on *nix.

This got me thinking: an easier way to run Fishnet on desktop might encourage more people to join the swarm. I imagine a minimal GUI (something like a system tray icon that auto-starts with the OS) could be enough to get many more instances online, both from less tech-savvy users... and lazy asses like me ;)

Would the team be interested in this? It took me a while to get my Fishnet key, so I’m not sure if scaling up the number of instances is a current priority.

As an alternative, I considered implementing a [Windows service](https://docs.rs/windows-service/latest/windows_service/), but a lightweight GUI has clear advantages for desktops, such as letting you quickly pause processing temporarily when you need all your CPU for gaming or other intensive tasks.

I’m mainly posting to gauge interest. If it sounds useful, I’d be willing to work on it. I have experience with Rust and Tauri, shouldn't be too hard to integrate Fishnet as a library.

What do you think?

The issue names no files, tests, or entry points; begin by reviewing Fishnet's existing integration points and how its Rust library is started. Clarify whether a Tauri tray app or a Windows service is wanted, how auto-start and pausing should work, and what desktop platforms are in scope before implementation. Done requires an agreed design and an accepted integration path.

Written by the indexing model from the issue text.