WebGPURenderer: Make device capabilities handling more consistent.

[Mugen87]

Related issue: -

Description

We need to make sure WebGPURenderer better honors the device's capabilities. E.g. similar to WebGLRenderer, it should warn the user when a texture exceeds the maximum supported texture size and perform a resize.

As a preparation for upcoming changes, this PR refactors the limits management by grouping the limit checks in dedicated modules. For that WebGPUCapabilities is introduced that shares the same methods like WebGLCapabilities. Renderer, backends and node builders should not check capabilities by themselves but use the capabilities modules to query limits.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	359.57 85.37	359.57 85.37	+0 B +0 B
WebGPU	626.97 174.23	627.17 174.29	+196 B +63 B
WebGPU Nodes	625.55 173.98	625.75 174.05	+196 B +63 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	491.31 119.78	491.31 119.78	+0 B +0 B
WebGPU	700.59 189.23	700.79 189.28	+196 B +48 B
WebGPU Nodes	649.8 176.59	649.99 176.64	+196 B +52 B