feat: add nterval-wgsl compilation target

Author: arnog

CHANGELOG.md

@@ -414,6 +414,12 @@ ce.simplificationRules.push({
   - `@vertex`/`@fragment`/`@compute` entry points with struct-based I/O
   - `@group`/`@binding` uniform declarations and `@workgroup_size` for compute
 
+- **Interval WGSL Compilation Target**: New `interval-wgsl` target for interval
+  arithmetic in WebGPU shaders, mirroring the existing `interval-glsl` target.
+  Since WGSL does not support function overloading, the library uses `_v`
+  suffixes for internal vec2f-parameter implementations (e.g., `ia_add_v`),
+  while the public API (`ia_add`, `ia_sin`, etc.) takes `IntervalResult` values.
+
 ### Bug Fixes
 
 - **`Sequence` type inference now returns a proper tuple type**: Multi-argument

src/compute-engine.ts

@@ -29,6 +29,7 @@ export { WGSLTarget } from './compute-engine/compilation/wgsl-target';
 export { PythonTarget } from './compute-engine/compilation/python-target';
 export { IntervalJavaScriptTarget } from './compute-engine/compilation/interval-javascript-target';
 export { IntervalGLSLTarget } from './compute-engine/compilation/interval-glsl-target';
+export { IntervalWGSLTarget } from './compute-engine/compilation/interval-wgsl-target';
 export { BaseCompiler } from './compute-engine/compilation/base-compiler';
 
 // Free functions backed by a lazily-instantiated global engine

src/compute-engine/compilation/index.ts

@@ -8,6 +8,7 @@ export * from './wgsl-target';
 export * from './python-target';
 export * from './interval-javascript-target';
 export * from './interval-glsl-target';
+export * from './interval-wgsl-target';
 
 // Legacy exports for backward compatibility
 export { BaseCompiler as compile } from './base-compiler';