Magic Link Audits Without Full URLs

<p>Most Playwright suites stop right before the hard part of a signup flow: the "confirm your email" link, the emailed 6-digit code, the password-reset mail. The usual reasons are

<p>Use a durable delivery-claim ledger keyed by the logical password-reset challenge, channel, and message purpose; commit that claim before dispatch, reuse the same idempotency

<p>The developer adds <code>?api_key=</code> to the URL because it is the simplest way to test an endpoint. The credential works. The endpoint returns data. What the developer

<p>I review a lot of webhook handlers. Roughly <strong>3 out of 5 either have a subtle signature-verification bug</strong> — or someone disabled verification entirely "to make it