Log in and test webhooks from the terminal

• npx joinsimplesms login opens the console for you to approve and stores a new test key for the machine, then prints your sandbox number. No key to copy. Test keys only; login --key still stores one you have. See CLI.
• npx joinsimplesms listen --forward-to http://localhost:3000/webhooks replays your events to a local server, signed like real webhooks with a secret it prints. No tunnel. Your configured endpoints are not touched. See Test locally.
• npx joinsimplesms trigger message.received fires a sandbox event.
• Webhook endpoints over the API: POST /v1/webhooks (returns the signing secret once), GET / PATCH / DELETE /v1/webhooks/{id}, and webhooks.create / get / update / delete in the Node and Python SDKs (2.1.0). Restricted keys need the new webhooks:write scope; the existing webhooks scope stays read-only.
• GET /v1/events/wait: long-poll for new events (events.wait in the SDKs).
• JSON errors on the API host: an unknown path on api.joinsimplesms.com now answers 404 with {"error":{"code":"not_found",...}} instead of an HTML page, and an unsupported method answers 405 method_not_allowed with an Allow header instead of an empty body.