chore: Measure tree-shakeability in CI

[piaccho]

Changes

This PR introduces a test application for measuring and comparing the tree-shaking and bundling efficiency of different JS bundlers (tsdown, esbuild, webpack) for the typegpu package.

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Closes #1747

[github-actions]

pkg.pr.new

packages
Ready to be installed by your favorite package manager ⬇️

https://pkg.pr.new/software-mansion/TypeGPU/typegpu@f17858966dd4a20c9b58c43b08e33edb9f609766

https://pkg.pr.new/software-mansion/TypeGPU/@typegpu/noise@f17858966dd4a20c9b58c43b08e33edb9f609766

https://pkg.pr.new/software-mansion/TypeGPU/unplugin-typegpu@f17858966dd4a20c9b58c43b08e33edb9f609766

benchmark
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commit
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[piaccho]

Bundler efficiency report

example1.ts

import { f32, sizeOf } from 'typegpu/data';
console.log(sizeOf(f32));

Bundler	Bundle Size (bytes)
tsdown	38756
esbuild	94104
webpack	39211

example2.ts

import * as d from 'typegpu/data';
console.log(d.sizeOf(d.f32));

Bundler	Bundle Size (bytes)
tsdown	38756
esbuild	94104
webpack	39211

example3.ts

import tgpu from 'typegpu';
console.log(tgpu.resolve({ externals: {} }));

Bundler	Bundle Size (bytes)
tsdown	246603
esbuild	247759
webpack	269912

[Copilot]

Pull Request Overview

This PR introduces a test application for measuring and comparing the tree-shaking and bundling efficiency of different JavaScript bundlers (tsdown, esbuild, webpack) for the typegpu package as part of CI automation.

• Adds a dedicated treeshake-test application with utilities for bundling and measuring output sizes
• Creates three example TypeScript files to test different import patterns from the typegpu package
• Implements a GitHub Actions workflow to run tree-shaking tests on pull requests

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
apps/treeshake-test/utils.ts	Core bundling utilities for esbuild, webpack, and tsdown with size measurement and markdown report generation
apps/treeshake-test/index.ts	Main test runner that processes examples and generates results
apps/treeshake-test/package.json	Package configuration with bundler dependencies
apps/treeshake-test/tsconfig.json	TypeScript configuration for the test app
apps/treeshake-test/tsdown.config.ts	Configuration for tsdown bundler
apps/treeshake-test/examples/*.ts	Three test files demonstrating different import patterns
apps/treeshake-test/.gitignore	Ignores build output and results
.github/workflows/treeshake-test.yml	CI workflow for automated tree-shaking tests

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