Generated project layout

Identity

Generated pnpm workspace with packages/api, packages/shared, and packages/frontend.

API owns schema, migrations, auth adapters, app routes, boot, mail, and database I/O.
Shared owns browser-safe contracts, wire types, parsers, serializers, and constants.
Frontend owns typed clients, navigation, routes, screens, and generated table integration.
API and frontend may import shared; shared must not import either I/O package.