test: integration tests for NIP-22 created_at timestamp limits

[phoenix-server]

Summary

The relay enforces createdAt.maxPositiveDelta (default 900s) and createdAt.maxNegativeDelta (default 0 = unlimited) from settings to reject events with implausible timestamps. There are no integration tests covering this enforcement.

What to test

• Event with created_at exactly at the current time → accepted
• Event with created_at 900 seconds in the future (at the limit) → accepted
• Event with created_at 901 seconds in the future (over the limit) → rejected with invalid:
• When maxNegativeDelta is configured, events older than the limit → rejected
• Events within the negative delta limit → accepted

Relevant code

• resources/default-settings.yaml — limits.event.createdAt
• src/@types/settings.ts
• src/handlers/event-message-handler.ts

Suggested location

test/integration/features/nip-22/nip-22.feature

[Priyanshubhartistm]

@phoenix-server , @cameri could you please assign

[cameri]

@Priyanshubhartistm thank you!