chore: add OAS doc annotation

Signed-off-by: Pat Losoponkul <pat.losoponkul@iohk.io>

prism-agent/service/server/src/main/scala/io/iohk/atala/iam/wallet/http/model/CreateWalletUmaPermissionRequest.scala

@@ -1,18 +1,29 @@
 package io.iohk.atala.iam.wallet.http.model
 
+import io.iohk.atala.api.http.Annotation
 import sttp.tapir.*
 import sttp.tapir.Schema.annotations.{description, encodedExample, validate}
 import zio.json.{DeriveJsonDecoder, DeriveJsonEncoder, JsonDecoder, JsonEncoder}
 
 import java.util.UUID
 
-// TODO: annotate
 final case class CreateWalletUmaPermissionRequest(
+    @description(CreateWalletUmaPermissionRequest.annotations.subject.description)
+    @encodedExample(CreateWalletUmaPermissionRequest.annotations.subject.example)
     subject: UUID
 )
 
 object CreateWalletUmaPermissionRequest {
   given encoder: JsonEncoder[CreateWalletUmaPermissionRequest] = DeriveJsonEncoder.gen
   given decoder: JsonDecoder[CreateWalletUmaPermissionRequest] = DeriveJsonDecoder.gen
   given schema: Schema[CreateWalletUmaPermissionRequest] = Schema.derived
+
+  object annotations {
+    object subject
+        extends Annotation[UUID](
+          description =
+            "The subject ID that should be granted the permission to the wallet. This can be found in the `sub` claim of a JWT token.",
+          example = UUID.fromString("00000000-0000-0000-0000-000000000000")
+        )
+  }
 }