Add type file reference in package.json

[TiMESPLiNTER]

This adds the type file reference in the package.json, so TS can find types for this package and doesn't need to fall back on @types/type-detect shim.

[Copilot]

Pull request overview

This PR adds an explicit TypeScript declaration entrypoint to package.json so TypeScript consumers can resolve this package’s bundled typings directly (instead of falling back to @types/type-detect).

Changes:

• Add "types": "./index.d.ts" to package.json.
• Update package-lock.json (includes significant dependency-resolution changes).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
package.json	Declares the package’s TypeScript types entrypoint (index.d.ts).
package-lock.json	Lockfile updated; includes notable dependency tree/version shifts (e.g., ajv resolution).

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