x402 Surface Check v0.2.1

Adds endpoint discovery for x402 manifests that publish endpoint objects through endpoints[] with path/url/endpoint fields, alongside the existing direct endpoint and MPP WWW-Authenticate checks.\n\nVerified with npm test, npm pack --dry-run, GitHub CI, and a live no-payment pass against an endpoints[] manifest.\n\nNpm publishing for this version is still pending npm OTP or Trusted Publisher configuration. Until then, use:\n\nbash\nnpx --yes github:TateLyman/x402-surface-check#v0.2.1 https://api.example.com/.well-known/x402.json\n