* feat(backend): add admin plugin and create-admin script
Add Better Auth admin plugin for role-based user management.
Includes a CLI script to create admin accounts.
Co-authored-by: Ona <no-reply@ona.com>
* fix(backend): guard against missing BETTER_AUTH_SECRET
Co-authored-by: Ona <no-reply@ona.com>
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Co-authored-by: Ona <no-reply@ona.com>