Add configurable WASM URL for browser bundler compatibility

[slimbuck]

Add configurable WASM URL for browser bundler compatibility

This PR enables browser-based bundlers (Vite, Webpack, etc.) to properly locate and bundle the WebP WASM file by:

• Exporting the WebPCodec class from the public API
• Adding a static wasmUrl property to configure the WASM file path
• Adding a package export for the lib/ directory to allow direct WASM imports

Changes

• WebPCodec.wasmUrl: New static property to configure the WASM file URL before SOG read/write operations
• Package exports: Added ./lib/* export mapping for direct access to webp.wasm

Usage

For bundlers that require explicit WASM URL handling:

import { WebPCodec } from '@playcanvas/splat-transform';
import wasmUrl from '@playcanvas/splat-transform/lib/webp.wasm?url';

WebPCodec.wasmUrl = wasmUrl;

This should be called once at application startup, before any SOG file operations.

[Copilot]

Pull request overview

This PR adds configurable WASM URL support to enable browser bundlers (Vite, Webpack, etc.) to properly locate and bundle the WebP WASM file. The solution exports the WebPCodec class publicly and adds a static wasmUrl property that can be set before SOG operations.

Changes:

• Added a public wasmUrl static property to WebPCodec class for configuring WASM file location
• Exported WebPCodec class from the library's public API
• Added ./lib/* export mapping in package.json for direct access to WASM files

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/lib/utils/webp-codec.ts	Added static wasmUrl property and modified locateFile logic to use it when available
src/lib/index.ts	Exported WebPCodec class from public API
package.json	Added ./lib/* export mapping for direct WASM file imports

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