Trigger a test webhook event (test environment only)

Triggers a realistic webhook delivery through the real pipeline (queue → dispatcher → HMAC-signed HTTP delivery).

⚠️ TEST ENVIRONMENT ONLY - Returns 403 in production. Use testreferral-api.debitura.com for testing.

How it works:

• Looks up real entity data (case or client link) to construct a realistic payload
• Publishes through the same pipeline as production events (signature verification, retries, etc.)
• Returns immediately after enqueueing — delivery is async via Azure Queue

Case events (case.created, case.updated, case.closed):

• Requires caseId — must be a real case belonging to a linked client
• For case.updated: optionally provide oldLifecycle and newLifecycle (defaults to current → Closed)
• For case.closed: optionally provide closeCode and closeComment (defaults to Paid)

Client events (client.linked, client.link_declined, client.link_requested, client.link_expired, client.onboarding.poa_signed, client.onboarding.contract_signed):

• Requires externalTenantId — must be an active client link belonging to your account