Apply AdminRoute options on CRUD controller action routes

[lacatoire]

Fixes #7496.

Bug

The #[AdminRoute] attribute applied to a method of a CRUD controller silently ignored every option except path, name, and options['methods']. In particular, requirements, host, schemes, condition, defaults, locale, format, stateless, utf8, and nested options were dropped.

Reproducer from the issue:

#[AdminRoute(
    path: '/preview/{entityId}',
    name: 'preview',
    options: ['requirements' => ['entityId' => Requirement::UUID_V7]]
)]
public function preview(AdminContext $context): Response

Hitting /preview/foo matched the route (requirements were never applied), the controller fetched the entity, and Doctrine failed with a conversion error instead of returning 404.

Fix

AdminRouteGenerator::getCustomActionsConfig() now stores the full $adminRouteInstance->options array, and the CRUD route creation loop applies them to the generated Route through a new shared helper applyAdminRouteOptions().

The two other places that previously implemented the same option-to-route mapping inline (createRouteForAdminAttribute() for standalone admin methods and createRouteFromOldRouteConfig() for dashboard-level routeOptions) have been refactored to use the same helper, which removes a triple duplication.

Tests

• testAdminRouteAdvancedOptionsOnCrudAction exercises a CRUD controller action with #[AdminRoute] defining requirements, host, schemes, condition, defaults, locale, format, stateless, utf8, and nested options, and asserts each value lands on the generated Route.
• The pre-existing testAdminDashboardAdvancedRouteOptions still passes (exercises the refactored createRouteFromOldRouteConfig() path).
• Full tests/Functional/AdminRoute/AdminRouteTest.php suite: 21 tests / 226 assertions, all green locally.