CONV-249: Create BillingWebhookEventRecorder

[menvil]

Summary

• Created BillingWebhookEventRecorder with recordIfNew(), markProcessed(), and wasProcessed() methods
• Uses firstOrCreate to safely handle duplicate events — DB unique constraint provides race condition protection
• Tests verify idempotent recording, marking as processed, and detection of processed events

Test plan

• composer test passes (451 tests)
• composer lint passes

🤖 Generated with Claude Code

---

Summary by cubic

Implements CONV-249 by adding a BillingWebhookEventRecorder to deduplicate and track billing webhook events. Prevents double-processing by recording once and checking processed state.

• New Features
  • Added BillingWebhookEventRecorder with recordIfNew(), markProcessed(), and wasProcessed().
  • Uses firstOrCreate with a unique provider_event_id to avoid duplicates and race conditions.
  • Feature tests cover single-recording, marking as processed via processed_at, and processed detection.

^{Written for commit 5f83939. Summary will update on new commits.}

[coderabbitai]

Important

Review skipped

Auto reviews are limited based on label configuration.

🏷️ Required labels (at least one) (1)

• release

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 5719588f-a93f-479f-9739-0353f637f944

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/CONV-249-create-billing-webhook-event-recorder

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}