Implemented CRUD operations for database tables via REST: create-table,
drop-table, query, transaction, and schema retrieval. Included
authentication and namespace ownership enforcement. Added comprehensive
end-to-end tests for new database routes. Updated documentation with
usage examples and migration workflow.
The commit adds a new database migration system and improves the
authentication flow with multi-wallet support. The migration system
provides robust SQL handling and versioning, while the auth system now
features automatic wallet detection and credential persistence.
