internal/store opens $MEALQUEST_DATA_DIR/mealquest.db with modernc.org/sqlite
(CGO-free) as one writer connection and a read-only pool of four, with
busy_timeout=5000, journal_mode=WAL and foreign_keys=ON on every connection.
migrations/*.sql are embedded and applied at boot in filename order, each
in its own transaction together with its schema_migrations row, so a failing
migration rolls back and fails boot. A database holding a version this build
does not know is refused. 0001_init.sql is a placeholder until the v1 schema
lands.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>