Start adding identity based pricing logic

frontend/src/hooks/api/subscriptions/types.ts

@@ -2,6 +2,8 @@ export type SubscriptionPlan = {
   id: string;
   membersUsed: number;
   memberLimit: number;
+  identitiesUsed: number;
+  identityLimit: number;
   auditLogs: boolean;
   dynamicSecret: boolean;
   auditLogsRetentionDays: number;