docs: add compute shader definition types

[mvaligursky]

Summary

• Document computeBindGroupFormat and computeUniformBufferFormats on the public Shader definition.
• Ensure generated TypeScript declarations accept both properties in inline shader definition objects.
• Document that caller-provided compute resources use bind group 0 and that uniform buffer formats require the corresponding bind group format.

Fixes #9060

Public API changes

The generated Shader definition type now includes the existing WebGPU compute options.

Before:

new Shader(device, {
    cshader,
    computeBindGroupFormat // TypeScript excess-property error
});

After:

new Shader(device, {
    cshader,
    computeBindGroupFormat,
    computeUniformBufferFormats
});

This corrects the type declarations only; runtime behavior is unchanged.

Testing

• npm run build:types
• npm run test:types
• npm run lint

Performance considerations

None. This is a JSDoc/type declaration correction with no runtime changes.

[github-actions]

Build size report

This PR does not change the size of the minified bundles.

Bundle	Minified	Gzip	Brotli
playcanvas.min.js	2279.9 KB —	587.6 KB —	456.9 KB —
playcanvas.min.mjs	2277.3 KB —	586.7 KB —	456.6 KB —

[github-actions]

Public API report

This PR changes the public API surface (+1 / −1), per the docs' rules (@ignore / @Private / undocumented are excluded).

Show API diff

-Shader.constructor(graphicsDevice: GraphicsDevice, definition: { attributes: object; cdefines: Map<string, string>; cincludes: Map<string, string>; computeEntryPoint: string; cshader: string; feedbackVaryings: string[]; fincludes: Map<string, string>; fragmentOutputTypes: string | string[]; fshader: string; name: string; shaderLanguage: string; useTransformFeedback: boolean; vincludes: Map<string, string>; vshader: string })
+Shader.constructor(graphicsDevice: GraphicsDevice, definition: { attributes: object; cdefines: Map<string, string>; cincludes: Map<string, string>; computeBindGroupFormat: BindGroupFormat; computeEntryPoint: string; computeUniformBufferFormats: object; cshader: string; feedbackVaryings: string[]; fincludes: Map<string, string>; fragmentOutputTypes: string | string[]; fshader: string; name: string; shaderLanguage: string; useTransformFeedback: boolean; vincludes: Map<string, string>; vshader: string })

Informational only — this never fails the build.