v0.2.0

Added

• @dojocoding/whatsapp/web subpath — Fetch-API
  (Request → Response) handler usable on Cloudflare Workers, Bun,
  Deno, Hono, Next.js App Router, and any WinterCG runtime. See
  docs/web.md and
  docs/cookbook/cloudflare-workers.md.
• WebCrypto migration of verifySignature, verifyHandshake, and
  hashPhoneNumberId — these now run unmodified on any WinterCG
  runtime in addition to Node. Byte-identical output to the previous
  node:crypto implementations, verified by parity tests.

Changed

• BREAKING (pre-1.0 minor): verifySignature, computeSignature,
  and hashPhoneNumberId are now async. Internal call sites are
  updated; external callers must await the return value.
• BREAKING (pre-1.0 minor): WebhookReceiver.verify and
  WebhookReceiver.handlePayload are now async. The return shape
  ({ status, dispatchPromise }) is unchanged; the receiver now
  resolves to it via a Promise.
• The Express adapter is now a thin shim over the web-standard core
  (createWhatsAppHandler). Externally observable behaviour is
  unchanged; the integration suite passes without modification.