Replaced servez with custom server.js.

[mrdoob]

Description

I personally use servez.app on MacOS so I never run npm run dev or npm run dev-ssl.

However, seems like we can replicate what servez does with a simpler server.js script and remove even more dependencies.

Happy to add features to server.js as needed.

(Made with Claude Opus 4.5)

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	355.36 84.47	355.36 84.47	+0 B +0 B
WebGPU	621.33 172.52	621.33 172.52	+0 B +0 B
WebGPU Nodes	619.94 172.27	619.94 172.27	+0 B +0 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	487.5 119.33	487.5 119.33	+0 B +0 B
WebGPU	692.55 187.87	692.55 187.87	+0 B +0 B
WebGPU Nodes	642.35 175.09	642.35 175.09	+0 B +0 B

[mrdoob]

We're down to 282 packages (from 732 a few hours ago).

mrdoob@Mrdoobs-MacBook-Air three.js % npm install

added 282 packages, and audited 283 packages in 15s

53 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

[ycw]

Failed to boot npm run dev on Windows since this merge, made #32674 to fix.