[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/Controllers/RecoveryController.cs

@@ -0,0 +1,68 @@
+using Bit.Billing.Models.Recovery;
+using Bit.Billing.Services;
+using Bit.Core.Utilities;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Stripe;
+
+namespace Bit.Billing.Controllers;
+
+[Route("stripe/recovery")]
+[SelfHosted(NotSelfHostedOnly = true)]
+public class RecoveryController(
+    IStripeEventProcessor stripeEventProcessor,
+    IStripeFacade stripeFacade,
+    IWebHostEnvironment webHostEnvironment) : Controller
+{
+    private readonly string _stripeURL = webHostEnvironment.IsDevelopment() || webHostEnvironment.IsEnvironment("QA")
+        ? "https://dashboard.stripe.com/test"
+        : "https://dashboard.stripe.com";
+
+    // ReSharper disable once RouteTemplates.ActionRoutePrefixCanBeExtractedToControllerRoute
+    [HttpPost("events/inspect")]
+    public async Task<Ok<EventsResponseBody>> InspectEventsAsync([FromBody] EventsRequestBody requestBody)
+    {
+        var inspected = await Task.WhenAll(requestBody.EventIds.Select(async eventId =>
+        {
+            var @event = await stripeFacade.GetEvent(eventId);
+            return Map(@event);
+        }));
+
+        var response = new EventsResponseBody { Events = inspected.ToList() };
+
+        return TypedResults.Ok(response);
+    }
+
+    // ReSharper disable once RouteTemplates.ActionRoutePrefixCanBeExtractedToControllerRoute
+    [HttpPost("events/process")]
+    public async Task<Ok<EventsResponseBody>> ProcessEventsAsync([FromBody] EventsRequestBody requestBody)
+    {
+        var processed = await Task.WhenAll(requestBody.EventIds.Select(async eventId =>
+        {
+            var @event = await stripeFacade.GetEvent(eventId);
+            try
+            {
+                await stripeEventProcessor.ProcessEventAsync(@event);
+                return Map(@event);
+            }
+            catch (Exception exception)
+            {
+                return Map(@event, exception.Message);
+            }
+        }));
+
+        var response = new EventsResponseBody { Events = processed.ToList() };
+
+        return TypedResults.Ok(response);
+    }
+
+    private EventResponseBody Map(Event @event, string processingError = null) => new()
+    {
+        Id = @event.Id,
+        URL = $"{_stripeURL}/workbench/events/{@event.Id}",
+        APIVersion = @event.ApiVersion,
+        Type = @event.Type,
+        CreatedUTC = @event.Created,
+        ProcessingError = processingError
+    };
+}