feat: export Result and ResultConfig types from package entry

[jimmyandrade]

Summary

Proposed changes

Exposes the public result types on the package API so TypeScript consumers can annotate webfont() output directly.

• src/index.ts: re-export Result (from ./types/Result) and ResultConfig (from ./types/ResultConfig) from the package entry. They were already defined and exported internally but not surfaced on the public entry point, so consumers had to fall back to ReturnType/Awaited inference.
• README.md: add a TypeScript example under the existing Result section showing import { webfont, type Result, type ResultConfig } from "webfont" and typed access to result.config.filePath.
• src/index.test.ts: add a type-level test (expectTypeOf) that fails npm run typecheck if the exports are removed or their shape changes, plus a test asserting the default and named webfont exports are the same reference.

No runtime behavior changes — this is a public type-surface addition plus docs.

Related issue

Refs #758 (kept open until the fix ships on npm, per the release workflow).

Dependencies added/removed (if applicable)

N/A — no package.json changes.

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Testing

• I have added or updated tests that prove my fix is effective or that my feature works (if applicable)
  • Unit test — type-level assertions in src/index.test.ts (validated by tsc), plus default/named export identity.

How to test

1. npm run lint — Biome clean.
2. npm run typecheck — passes; removing either export or changing ResultConfig/Result shape makes it fail.
3. npm test — 418 tests pass.
4. npm run test:package — publint clean, attw green for node10 / node16 (CJS & ESM) / bundler, and ESM+CJS pack-smoke consumers OK, confirming the types resolve from the published tarball.
5. In a consumer: import { webfont, type Result, type ResultConfig } from "webfont" type-checks.

Test configuration

• N/A

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Checklist

• I have added corresponding labels to this PR (like bug, enhancement...);
• My commits follow the Conventional Commits 1.0 Guidelines;
• My code follows the style guidelines of this project;
• I have performed a self-review of my own code;
• I have made changes to the documentation (if applicable);
• My changes generate no new warnings or errors;

Made with Cursor

[Copilot]

Pull request overview

This PR expands the public TypeScript surface of webfont by re-exporting the Result and ResultConfig types from the package entry, allowing consumers to annotate webfont() output directly.

Changes:

• Re-export Result and ResultConfig from src/index.ts.
• Add a README TypeScript example demonstrating typed webfont() usage and result.config.filePath access.
• Add tests to assert default/named export identity and to enforce the presence/shape of the exported result types via expectTypeOf.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/index.ts	Re-exports Result / ResultConfig types from the public entry point.
src/index.test.ts	Adds runtime export identity test and type-level assertions guarding the new public type exports.
README.md	Documents the new public type exports with a TypeScript usage example under the Result section.