feat(webhooks): add events.replay()

[gabrielmfern]

Adds POST /webhooks/{webhook_id}/events/{event_id}/replay as resend.webhooks.events.replay(), next to the existing events.get(). Replaying queues one more delivery of the event to the webhook, same as the dashboard's Replay button; manual replays do not schedule automatic retries.

replay(options: ReplayWebhookEventOptions): Promise<ReplayWebhookEventResponse>

const { data, error } = await resend.webhooks.events.replay({
  webhookId: '4dd369bc-aa82-4ff3-97de-514ae3000ee0',
  eventId: 'msg_1srOrx2ZWZBpBUvZwXKQmoEYga2',
});
// data: { object: 'webhook_event', id: 'msg_1srOrx2ZWZBpBUvZwXKQmoEYga2' }

Also bumps the package version from 6.25.0 to 6.26.0 (same as #1083 did for the event endpoints).

• Spec: feat: add webhook event replay endpoint resend-openapi#112
• API: https://github.com/resend/resend-monorepo/pull/9535
• Docs: https://resend.com/docs/api-reference/webhooks/replay-event

Checks:

• pnpm install --frozen-lockfile ok
• pnpm lint ok
• pnpm typecheck ok
• pnpm test ok (36 files, 419 passed)
• pnpm build ok

Not done: no live API call (write endpoint, no key configured). No CHANGELOG entry, following #1083.

Part of DEV-2005.

Linear: https://linear.app/resend/issue/DEV-2008

---

Summary by cubic

Adds resend.webhooks.events.replay() to queue one more delivery of a webhook event, matching the dashboard's Replay button. Manual replays do not schedule automatic retries. Bumps the package version to 6.26.0.

^{Written for commit aae172b. Summary will update on new commits.}

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commit: aae172b

[cubic-dev-ai]

No issues found across 5 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Requires human review: Adds a new public POST API method that triggers an additional webhook delivery. Approval requires human sign-off on this externally observable replay contract and its delivery semantics.

Re-trigger cubic</sub>