snapshot: preserve session hardening and account surface

backend/workflows/trial.py

@@ -12,6 +12,10 @@ from .branding import get_portal_trial_config, is_trial_expired
 from .models import AdminAuditLog, EmployeeProfile, OffboardingRequest, OnboardingIntroductionSession, OnboardingRequest, ScheduledWelcomeEmail
 from .roles import ROLE_PLATFORM_OWNER, get_user_role_key
 
+# Trial cleanup is intentionally destructive but platform-scoped.
+# It preserves the platform-owner account so expired demo environments remain
+# recoverable and inspectable by the product operator.
+
 
 def cleanup_trial_workspace_data() -> dict[str, int]:
     user_model = get_user_model()