Guard stale STL model loads

[shriram-svg]

/claim #93

Summary

• Guard STLModel async STL loader callbacks so late results after stlUrl/stlData changes do not update component state.
• Dispose geometry that resolves after the component/effect has already cleaned up.
• Remove the unused mtlUrl prop and update material disposal to satisfy the touched-file Biome check.

Verification

• bunx biome check src/three-components/STLModel.tsx
• bun test tests/cad-model-transform.test.ts tests/resolve-model-url.test.ts
• bun run build
• bun run test:node-bundle
• git diff --check

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
3d-viewer	Ready	Preview, Comment	May 20, 2026 6:23am