- Module github.com/cdnutter/canon, binary/command cmd/canon, Docker
image and compose project "canon"
- Environment variables now use the CANON_ prefix
- Default site title is "<Your name>'s Canon" (or "Canon" with no name);
a Site title set in Settings still overrides it
- Existing topdeck.db (and WAL files) is renamed to canon.db on start
- README: upgrade notes, including moving the old compose volume
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
