Add MIT license metadata to package.json

[aqin236]

Add MIT license metadata to package.json

Summary

• Add "license": "MIT" to package.json.

Why

The repository is MIT licensed and ships a LICENSE file, but the published npm package metadata does not include a license field. Adding it makes the npm metadata match the repository license and helps package consumers and automated compliance tooling.

Verification

• node -e "const p=require('./package.json'); if(p.license!=='MIT') process.exit(1); console.log(JSON.stringify({name:p.name,version:p.version,license:p.license}))"
• npm pack --dry-run --ignore-scripts --json
• git diff --check

Note: git diff --check passed with a CRLF warning only.

[vercel]

@aqin236 is attempting to deploy a commit to the Exa Team on Vercel.

A member of the Team first needs to authorize it.