NIP-04 encryption is deprecated due to security vulnerabilities.
This migrates MuteList (kind 10000) and PinnedUsers (kind 10010)
private entries to use NIP-44 encryption, with backward compatibility
for reading existing NIP-04 encrypted content. When NIP-04 content
is detected, it is automatically re-encrypted with NIP-44 and
republished to gradually migrate users.
Co-Authored-By: captain-stacks <201298974+captain-stacks@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
