feat: add subscription_price to subscription history

- Included subscription_price in the subscription history object to enhance tracking of trial subscriptions.

packages/graphql/api/subscriptions.ts

@@ -170,6 +170,7 @@ export class SubscriptionsService extends BaseService {
         source: GQL.Enum_Subscriptionhistory_Source.Trial,
         state: GQL.Enum_Subscriptionhistory_State.Success,
         subscription: subscription.documentId,
+        subscription_price: trialPrice.documentId,
       },
     });