cf dev rejects --port and --host for Vite projects, including the cf init template #223

Summary of the issue

In a project created by cf init (which uses the Vite plugin v2 beta), cf dev refuses --port and --host:

$ cf dev --port 8787
┌ Error
│ Arguments cannot currently be forwarded to the detected dev command `npx
│ vite`. Run that command directly with the required arguments.
└

--host 127.0.0.1 fails the same way. --mode production is forwarded (Delegating to npx vite "--mode" "production"), and #22 shows --port reaching the Wrangler delegate. So the default template is the one setup where you can't change the dev server's port or host through cf dev.

Running npx vite --port 8787 works, but it skips cf's detection and autoconfig and means a different command than the one cf init prints in its next steps.

Expected behaviour

cf dev --port <n> and cf dev --host <h> forward to Vite as --port/--host, as they already do for the Wrangler delegate and as --mode already does for Vite.

Version of cf used

1.0.0-beta.12

System information and package versions

System:
  OS: macOS 27.0
  CPU: (18) arm64 Apple M5 Pro
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 26.8.2
  npm: 11.19.1
npmPackages:
  @cloudflare/vite-plugin: beta => 2.0.0-beta.sha-52b0dc0e9
  cf: ^1.0.0-beta.12 => 1.0.0-beta.12

Reproduction (optional)

cf init demo --package-manager npm
cd demo
cf dev --port 8787      # error above
cf dev --host 127.0.0.1 # same error
cf dev --mode production  # forwarded and works

Relevant error logs (optional)

Related: #22 (--persist-to ignored, and arguments after -- dropped).