additional stripe changes and Billing info cleanup

backend/src/types.ts

@@ -1,6 +1,7 @@
 export type WorkspaceType = 'standard' | 'rescue';
 export type WorkspaceRole = 'owner' | 'assistant' | 'caregiver' | 'viewer';
 export type BillingPlan = 'rescue_free' | 'household_basic' | 'household_plus' | 'household_macaw';
+export type BillingInterval = 'monthly' | 'yearly';
 export type SubscriptionStatus = 'active' | 'trialing' | 'past_due' | 'canceled' | 'unpaid' | 'none';
 export type RescueVerificationStatus = 'not_required' | 'pending' | 'approved' | 'rejected';
 export type ProviderKey = 'google' | 'microsoft' | 'apple';
@@ -21,6 +22,7 @@ export type WorkspaceRow = {
   workspace_type: WorkspaceType;
   billing_email: string | null;
   billing_plan: BillingPlan;
+  billing_interval: BillingInterval;
   subscription_status: SubscriptionStatus;
   stripe_customer_id: string | null;
   stripe_subscription_id: string | null;