guest role; guide section ticking

shopdb/cli/__init__.py

@@ -784,13 +784,20 @@ def fix_controls_direction():
 @seed_cli.command('permissions')
 @with_appcontext
 def seed_permissions():
-    """Seed predefined permissions."""
+    """Seed predefined permissions, and the guest role that can hold them."""
     from shopdb.extensions import db
-    from shopdb.core.models import Permission
+    from shopdb.core.models import Permission, Role
 
     created = Permission.seed()
+    # Seeded here rather than in `seed admin` so an existing site picks it up
+    # on the upgrade it already runs. It holds nothing until somebody grants
+    # it something, so seeding it changes no behaviour.
+    guest = Role.seedguest()
     db.session.commit()
     click.echo(click.style(f"{created} permissions created.", fg='green'))
+    if guest:
+        click.echo(click.style(
+            "guest role created (holds no permissions).", fg='green'))
 
 
 @seed_cli.command('settings')