Sessions are served from MariaDB via sessionModel.js + routes/sessionRoutes. These files were orphaned by the SQLite->MariaDB migration: - requireSession.js: unused (no importers), still required ./sqlite-db - healthcheck.js: required removed ./sqlite-db; would crash every run - server-healthcheck.yml: scheduled the broken healthcheck every 15 min Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>