Better Auth Core (TypeScript) Goals - Set up a Better Auth instance with environment variables and data layer wiring. - Wire server handlers and a client instance. - Use sessions and server-side API methods safely. - Keep data-layer choices pluggable (drivers or adapters). Quick start 1. Install . 2. Set (32+ chars) and . 3. Create and export . 4. Provide (driver or adapter) or omit for stateless sessions. 5. Mount a handler ( or a framework helper). 6. Create a client with . Core setup checklist - Export the instance as (or default export) so helpers find it. - Keep in sync with the public b…