Remove TodosProjectPermissionPreloader field extension

Use before_connection_authorization resolver block instead

app/graphql/resolvers/todo_resolver.rb

@@ -30,6 +30,13 @@ module Resolvers
              required: false,
              description: 'Type of the todo.'
 
+    before_connection_authorization do |nodes, current_user|
+      Preloaders::UserMaxAccessLevelInProjectsPreloader.new(
+        nodes.map(&:project).compact,
+        current_user
+      ).execute
+    end
+
     def resolve(**args)
       return Todo.none unless current_user.present? && target.present?
       return Todo.none if target.is_a?(User) && target != current_user

app/graphql/types/alert_management/alert_type.rb

@@ -115,9 +115,7 @@ module Types
             null: true,
             description: 'Runbook for the alert as defined in alert details.'
 
-      field :todos, description: 'To-do items of the current user for the alert.', resolver: Resolvers::TodoResolver do
-        extension(::Gitlab::Graphql::TodosProjectPermissionPreloader::FieldExtension)
-      end
+      field :todos, description: 'To-do items of the current user for the alert.', resolver: Resolvers::TodoResolver
 
       field :details_url,
             GraphQL::Types::String,

app/graphql/types/user_interface.rb

@@ -85,9 +85,7 @@ module Types
           null: true,
           description: 'Personal namespace of the user.'
 
-    field :todos, resolver: Resolvers::TodoResolver, description: 'To-do items of the user.' do
-      extension(::Gitlab::Graphql::TodosProjectPermissionPreloader::FieldExtension)
-    end
+    field :todos, resolver: Resolvers::TodoResolver, description: 'To-do items of the user.'
 
     # Merge request field: MRs can be authored, assigned, or assigned-for-review:
     field :authored_merge_requests,

lib/gitlab/graphql/todos_project_permission_preloader/field_extension.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Graphql
-    module TodosProjectPermissionPreloader
-      class FieldExtension < ::GraphQL::Schema::FieldExtension
-        def after_resolve(value:, memo:, **rest)
-          todos = value.to_a
-
-          Preloaders::UserMaxAccessLevelInProjectsPreloader.new(
-            todos.map(&:project).compact,
-            current_user(rest)
-          ).execute
-
-          value
-        end
-
-        private
-
-        def current_user(options)
-          options.dig(:context, :current_user)
-        end
-      end
-    end
-  end
-end