fix: listen to queued asynchronous actions at boot

CHANGELOG.md

@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `handle()` on `#[Action]`, `#[Filter]`, `#[WpRestRoute]` and `#[WpRestRoute\Method]`, and `Hook` no longer implements `HandlesAttributes`: `HookDiscovery` and `WpRestDiscovery` register hooks and routes themselves. Only the bug below reached `Action::handle()`, and `WpRestRoute::handle()` wrote to a read-only wrapper
 
 ### Fixed
+- A queued asynchronous action runs even when the request that runs it registers no hook: the framework listens to `pollora/async/run` at boot instead of waiting for an `Action` to be built. Before, a handler registered only in the request that queued it was never run, and Action Scheduler marked it failed ("no callbacks are registered")
 - `wp_get_environment_type()` follows `APP_ENV` instead of reading `production` on every site (#443): `local` gives `local`, `dev`, `development` and `testing` give `development`, `staging` gives `staging`, anything else `production`. A `WP_ENVIRONMENT_TYPE` environment variable, a `wordpress.constants.WP_ENVIRONMENT_TYPE` value or a constant defined earlier still wins. WordPress 7.1 turns pings (incoming and outgoing pingbacks and trackbacks) off outside `production`, so they are off on a site with `APP_ENV=local` or `staging`: `add_filter('wp_should_disable_pings_for_environment', '__return_false')` brings them back
 - `pollora:doctor` no longer counts as overdue WP-Cron events the ones Action Scheduler keeps: the `cron` option indexes them too, with a `driver` key
 - A public `#[Action]` or `#[Filter]` method in a `#[PostType]` or `#[Taxonomy]` class is registered once: the post type and taxonomy discoveries also handed it to `Action::handle()`, which registered it a second time on the discovery's configuration object, so the page firing that hook failed with `call_user_func(): Argument #1 ($callback) must be a valid callback, class Pollora\PostType\Infrastructure\Services\PostTypeConfiguration does not have a method …`

src/Hook/Infrastructure/Providers/AsyncServiceProvider.php

@@ -49,6 +49,9 @@ public function boot(): void
         $this->app->tag([AsyncActionsCheck::class], DoctorServiceProvider::CHECKS_TAG);
 
         $this->configureAsync($this->app->make(Repository::class));
+
+        // The run of a queued action must not wait for an Action to be built in the request: the request that runs it may register no hook at all
+        Async::listen();
     }
 
     private function configureAsync(Repository $config): void