test: integration tests for Request to Vanish (Kind 62)

[phoenix-server]

Summary

Kind 62 (Request to Vanish) triggers the VanishEventStrategy, which deletes all stored events for the sender's pubkey (except kind 62 itself) and marks the user as vanished. This is a destructive, irreversible flow with zero integration test coverage.

What to test

• After sending kind 62, a subsequent REQ for that pubkey's events returns only the kind 62 vanish event (all others deleted)
• After vanishing, any new events published by that pubkey must be rejected
• The kind 62 event itself is stored and retrievable

Relevant code

• src/handlers/event-strategies/vanish-event-strategy.ts
• src/factories/event-strategy-factory.ts
• src/repositories/event-repository.ts — deleteByPubkeyExceptKinds
• src/repositories/user-repository.ts — setVanished

Suggested location

test/integration/features/nip-62/nip-62.feature (or a dedicated vanish feature file)

[vikashsiwach]

Hey @phoenix-server @cameri ! I have worked on the implementation of Vanish(Kind 62). assign it to me

[cameri]

thank you @vikashsiwach !