A minimal demo trip with no cover_image and a single published journal entry
that has no images — the fixture the trip-page banner AE4 assertion needs
(macro fallback loop finds an entry but no image -> null cover -> no banner
strip). Lives under docs/demo/trips/ like italy-2026-demo, so it is loaded into
the pages tree only for tests and never reaches live content.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RDS6t8wcpbwKvvrxykVQ5K
