feat: VPN section with provider management and live stats

[Mestane]

Adds a VPN section to the Network page with provider management UI, provider list/add-edit pages, and improved VPN service monitoring and status parsing.

[PixelKhaos]

Seeing a lot of changes for WARP, did you get to test with other providers as well?
Something that I was planning was to scrap most of the old VPN approach and go for something more like an endpoint aggregator that just handles all the different providers into one single VPN handler, as it was very much just tacking on more and more of them

[Mestane]

Seeing a lot of changes for WARP, did you get to test with other providers as well?

Actually, no.

Something that I was planning was to scrap most of the old VPN approach and go for something more like an endpoint aggregator that just handles all the different providers into one single VPN handler, as it was very much just tacking on more and more of them

You're right about the pattern this still keeps the old switch(providerName) + per-provider parsers and adds onto them, so it's not the aggregator yet. It could be refactored so each provider is an adapter implementing a common interface (status/connect/disconnect/stats) and the handler never switches on a name the management + stats + UI here would carry over mostly unchanged on top of that.