Records the DATABASE_BACKEND explicit switch, schema-per-instance isolation
via search_path for shared-cluster prod/stg, the no-admin-credentials
provisioning decision, the migrate-to-postgres command internals, the
operator runbook, and the phased implementation order with SQLite gates.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Planning doc for adding Postgres support: code compatibility fixes,
a postgres container, component-based connection config, and a
SQLAlchemy ORM-based migration command for existing SQLite databases.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Louis King