Adds RestServiceBuilder with a Scope service that wraps the rest.scope.list v3 REST API method.

The method returns a nested module → controller → method → item map.
ScopeMethodsResult::getItems() flattens that structure into a flat ScopeMethodItemResult[] list.

Usage

$items = $serviceBuilder->getRestScope()->scope()->list('rest')->getItems();
foreach ($items as $item) {
    echo $item->scope . ': ' . $item->title . PHP_EOL;
}

Test plan

• make lint-cs-fixer — passed
• make lint-rector — passed
• make lint-phpstan — passed (0 errors)
• make lint-deptrac — passed (0 violations)
• make test-unit — passed (667 tests, 1153 assertions)
• make test-integration-rest-scope — passed (4 tests, 8 assertions)

Closes #408

🤖 Generated with Claude Code