Vite 8 deprecation: plugin sets `server.hmr.{host,protocol,clientPort,path}` — should use `server.ws.*`

[cofin]

Summary

On Vite 8, litestar-vite-plugin emits this deprecation warning during build / dev start:

`server.hmr.protocol/host/port/path/clientPort/timeout/server` is deprecated. Use `server.ws.*` instead.
Note that this option may be set by a plugin.

It fires even when the project's vite.config does not set server.hmr at all — the plugin injects it.

Environment

• litestar-vite-plugin 0.24.1
• vite 8.1.0

Source

The plugin injects the deprecated HMR network sub-options under server.hmr in dist/js/index.js:

• the config hook sets server.hmr = { path: "vite-hmr", clientPort?, ... } (~L145–149)
• later hmr: { host } / hmr: { host: resolvedHost } (~L847, ~L880)

In Vite 8 the HMR network options (host, protocol, port, path, clientPort, timeout) moved from server.hmr.* to server.ws.*. server.hmr should now carry only non-network toggles (e.g. overlay, or false to disable).

Suggested fix

Emit the network options under server.ws.* instead of server.hmr.*, keeping server.hmr only for the enable/disable toggle. May need to gate on Vite major version for back-compat with Vite 5–7.

Repro

Any litestar-vite project on Vite 8 → vite build (or dev server start) prints the warning.