v0.4.1

Changed

• The homepage and MCP Registry website URL point to https://email.ghostpaw.dev/.

Fixed

• Emit bracketed message IDs in In-Reply-To and References headers without duplicating brackets.
• Preserve indexed body text when cached message metadata changes.
• Keep MIME headers contiguous with the message header block during composition.
• Reject refused IMAP and SMTP connections with a connection error naming the endpoint, without an uncaught error event.

Full Changelog: v0.4.0...v0.4.1