list_adventures selected Scenario.title while grouping only by Adventure.id. SQLite tolerates selecting an ungrouped column, so it worked locally, but Postgres (Neon) rejects it — the adventures list endpoint 500'd on the live deploy, so saved adventures could not be listed or resumed. Add Scenario.title to the GROUP BY. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TEpWMjnfPqzZ13nPMoGhs5