Add team roles and content management updates

Backend/Endpoints/AdminEndpoints.cs

@@ -11,26 +11,11 @@ public static class AdminEndpoints
 
         group.MapAdminSiteSettingsEndpoints();
 
-        var managerGroup = group.MapGroup(string.Empty)
-            .AddEndpointFilter(RequireAdminWorkspaceRole);
-
-        managerGroup.MapAdminDashboardEndpoints();
-        managerGroup.MapAdminSeasonManagementEndpoints();
-        managerGroup.MapAdminModerationEndpoints();
+        group.MapAdminDashboardEndpoints();
+        group.MapAdminSeasonManagementEndpoints();
+        group.MapAdminModerationEndpoints();
+        group.MapAdminTeamEndpoints();
 
         return app;
     }
-
-    private static async ValueTask<object?> RequireAdminWorkspaceRole(
-        EndpointFilterInvocationContext context,
-        EndpointFilterDelegate next)
-    {
-        var session = AdminEndpointConventions.CurrentSession(context.HttpContext);
-        if (!AdminRoles.CanManageAdminWorkspace(session.Role))
-        {
-            return Results.Json(new { message = "This admin area requires an admin or owner role." }, statusCode: StatusCodes.Status403Forbidden);
-        }
-
-        return await next(context);
-    }
 }