The previous check counted ALL users (func.count(User.id)), which
incorrectly blocked bootstrap login if any non-admin user (e.g.,
Google OAuth sign-in) already existed. The fix queries specifically
for admin users using the legacy is_admin flag OR the admin role
assignment in user_roles.
Also add tests for the non-admin-user-only scenario and fix the
stale test_non_admin_user_cannot_login_as_admin assertion (401
not 403 — bootstrap path is still active when no admin exists).
- Add Role model and user_roles association table (many-to-many)
- Add password_hash column to User model (nullable, for future bcrypt)
- Keep is_admin boolean for backward compatibility
- Add is_admin_effective property: true if legacy is_admin OR 'admin' role
- Update auth dependency (get_current_admin_user) to use is_admin_effective
- Update bootstrap login to auto-create 'admin' role and assign on login
- Update Google OAuth login to use is_admin_effective for token creation
- Add migrate_roles.py: idempotent migration script to backfill roles
- Add unit tests for Role, User, association table, and is_admin_effective
Hermes Agent
kfj001