[PM-12420] Stripe events recovery (#4793)

* Billing: Add event recovery endpoints

* Core: Add InternalBilling to BaseServiceUriSettings

* Admin: Scaffold billing section

* Admin: Scaffold ProcessStripeEvents section

* Admin: Implement event processing

* Run dotnet format

src/Billing/Services/Implementations/StripeFacade.cs

@@ -6,6 +6,7 @@ public class StripeFacade : IStripeFacade
 {
     private readonly ChargeService _chargeService = new();
     private readonly CustomerService _customerService = new();
+    private readonly EventService _eventService = new();
     private readonly InvoiceService _invoiceService = new();
     private readonly PaymentMethodService _paymentMethodService = new();
     private readonly SubscriptionService _subscriptionService = new();
@@ -19,6 +20,13 @@ public class StripeFacade : IStripeFacade
         CancellationToken cancellationToken = default) =>
         await _chargeService.GetAsync(chargeId, chargeGetOptions, requestOptions, cancellationToken);
 
+    public async Task<Event> GetEvent(
+        string eventId,
+        EventGetOptions eventGetOptions = null,
+        RequestOptions requestOptions = null,
+        CancellationToken cancellationToken = default) =>
+        await _eventService.GetAsync(eventId, eventGetOptions, requestOptions, cancellationToken);
+
     public async Task<Customer> GetCustomer(
         string customerId,
         CustomerGetOptions customerGetOptions = null,