Add license field to package.json (currently reports as Unknown)

[nimtin-s]

The published @browserbasehq/sdk package omits the "license" field in its package.json. The package ships an Apache-2.0 LICENSE file, but the missing field causes npm/pnpm/yarn license tooling to report the package as Unknown — which trips dependency license audits in CI and forces consumers to maintain explicit allowlist exceptions.

Reproduction

$ pnpm view @browserbasehq/sdk@2.10.0 license
# (no output)

$ jq .license node_modules/@browserbasehq/sdk/package.json
null

$ head -1 node_modules/@browserbasehq/sdk/LICENSE
                                 Apache License

Suggested fix

Add the field to package.json:

{
  "license": "Apache-2.0"
}

Same license you already ship in the LICENSE file, just declared in the manifest so license tooling can pick it up.

Context

We use the SDK in production. Happy to send a small PR if helpful.