feature(#20): this commit introduces an API convention to improve the API specification/reference

Author: https-richardy

Applications/Backend/Source/HttpsRichardy.Federation.WebApi/Conventions/ClientsConventions.cs

@@ -40,4 +40,10 @@ public static void AssignPermissionAsync(string id, AssignClientPermissionScheme
     [ProducesResponseType(typeof(Error), StatusCodes.Status404NotFound)]
     [ProducesResponseType(typeof(Error), StatusCodes.Status409Conflict)]
     public static void RevokePermissionAsync(string id, string permissionId, CancellationToken cancellation) { }
+
+    [ApiConventionNameMatch(ApiConventionNameMatchBehavior.Prefix)]
+    [ProducesResponseType(typeof(IReadOnlyCollection<string>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(Error), StatusCodes.Status404NotFound)]
+    [ProducesResponseType(typeof(Error), StatusCodes.Status409Conflict)]
+    public static void AssignAudienceAsync(string id, AssignClientAudienceScheme request, CancellationToken cancellation) { }
 }