[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/Models/Recovery/EventsRequestBody.cs

@@ -0,0 +1,9 @@
+using System.Text.Json.Serialization;
+
+namespace Bit.Billing.Models.Recovery;
+
+public class EventsRequestBody
+{
+    [JsonPropertyName("eventIds")]
+    public List<string> EventIds { get; set; }
+}

src/Billing/Models/Recovery/EventsResponseBody.cs

@@ -0,0 +1,31 @@
+using System.Text.Json.Serialization;
+
+namespace Bit.Billing.Models.Recovery;
+
+public class EventsResponseBody
+{
+    [JsonPropertyName("events")]
+    public List<EventResponseBody> Events { get; set; }
+}
+
+public class EventResponseBody
+{
+    [JsonPropertyName("id")]
+    public string Id { get; set; }
+
+    [JsonPropertyName("url")]
+    public string URL { get; set; }
+
+    [JsonPropertyName("apiVersion")]
+    public string APIVersion { get; set; }
+
+    [JsonPropertyName("type")]
+    public string Type { get; set; }
+
+    [JsonPropertyName("createdUTC")]
+    public DateTime CreatedUTC { get; set; }
+
+    [JsonPropertyName("processingError")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string ProcessingError { get; set; }
+}