[Neup123]

Summary

• hydrate incomplete group delete requests from the authoritative stored message key
• restore LID/PN alternate participant data and addressing mode before the Baileys delete stanza
• scope key lookup to the current instance, original message ID, and matching chat/group JID
• retain the caller's requested message ID so hydration cannot redirect deletion
• add a regression test for n8n-style group deletes containing only group JID, message ID, and participant: @lid

Fixes #22.

Validation

• npx tsx test/message-key.test.ts
• npm run lint:check
• npx tsc --noEmit
• git diff --check

Live acceptance

No destructive live deletion was run. After deployment, live acceptance needs an explicitly designated disposable group message.