Adds `gt mail search <query>` command with:
- Regex pattern matching (case-insensitive by default)
- --from: Filter by sender address
- --subject: Only search subject lines
- --body: Only search message body
- --archive: Include archived (closed) messages
- --json: Output as JSON
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
c328730a00