tikkie: add 2 doc-sourced samples (REFUND, BUNDLE)

[garethx]

Adds the two Tikkie notification types missing upstream: REFUND and BUNDLE. This is the additive delta from hookdeck/webhook-registry samples-doc/ after hookdeck/webhook-registry#87 rebuilt the tikkie row from ABN AMRO's OpenAPI spec.

What's added

File	Source
providers/tikkie/latest/REFUND.json	RefundNotification example on the PaymentRequestNotification callback of POST /paymentrequestssubscription
providers/tikkie/latest/BUNDLE.json	BundledPayoutNotification example on the TransactionsNotification callback of POST /transactionssubscription

Both come verbatim from the spec the reference page renders (TikkieAPI_v2.3.yaml). They are complete bodies that carry every field the schema requires, and each file has a source block with type: vendor-documentation. With these, upstream covers the spec's whole notificationType enum (PAYMENT, REFUND, BUNDLE).

Headers: content-type: application/json only. The discriminator (notificationType) is in the body, and Tikkie notifications are unsigned, so there is no signature header to synthesize.

Checklist (SAMPLE-PUBLISHING.md)

• Capture vs doc: no scripts/tikkie/ harness exists, and neither topic is captured upstream.
• Version: latest/, matching the existing entry. Notifications carry no version; the /v2 in the API path versions the REST API, not the notification body.
• topic_identifier: unchanged (notificationType), and it matches the registry's discriminator_path_lookup.
• Existing files changed: zero. PAYMENT.json (body identical to the spec's example) and index.json are untouched.
  • provenance.latest.sourced_on stays 2026-07-29, the oldest date in the version (rule 8).
  • PAYMENT's recorded URL (/api-products/tikkie/reference-documentation) still resolves.
• yarn compile passes: tikkie/latest.json now has 3 topics. yarn test passes 14/14.
• Registry verify.py: FAIL (0) at 6bec6bb.

Volume was checked too and needs no change: upstream providers/volume/ is byte-identical to the registry's samples-doc/.

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated
webhook-samples	Ready	Preview	Oct 8, 2026 3:12pm UTC