refactor(music): improve dependency injection and initialization

- Change constructor parameters to be nullable for Meting and Driver.
- Use null coalescing assignment to initialize Meting and Driver if not provided.
- Update the app service provider to simplify Music singleton registration.

app/Music.php

@@ -18,6 +18,7 @@
 use GuzzleHttp\Exception\GuzzleException;
 use Illuminate\Contracts\Concurrency\Driver;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Concurrency;
 use Illuminate\Support\Timebox;
 use Illuminate\Support\Traits\Conditionable;
 use Illuminate\Support\Traits\Dumpable;
@@ -37,12 +38,15 @@ class Music implements Contracts\HttpClientFactory, Contracts\Music
     use Localizable;
 
     public function __construct(
-        private Meting $meting,
-        private Driver $driver,
+        private ?Meting $meting = null,
+        private ?Driver $driver = null,
         private ?Timebox $timebox = null,
     ) {
-        $this->meting = $meting->format();
-        $this->timebox = $timebox ?: new Timebox;
+        $this->meting ??= new Meting;
+        $this->driver ??= Concurrency::driver();
+        $this->timebox ??= new Timebox;
+
+        $this->meting->format();
     }
 
     /**
@@ -72,7 +76,7 @@ public function search(string $keyword, array $sources = []): Collection
                 ])
                 ->values()
                 ->mapWithKeys(static fn (array $song, int $index): array => [$index + 1 => $song]),
-            6180 * 1000
+            3820 * 1000
         );
     }
 

app/Providers/AppServiceProvider.php

@@ -22,9 +22,6 @@ final class AppServiceProvider extends ServiceProvider
         Conditionable::when as whenever;
     }
 
-    /** @var array<class-string|int, class-string> */
-    public array $singletons = [];
-
     /**
      * @noinspection PhpMissingParentCallCommonInspection
      */

app/Support/Meting.php

@@ -13,7 +13,7 @@
 
 namespace App\Support;
 
-final class Meting extends \Metowolf\Meting
+class Meting extends \Metowolf\Meting
 {
     /** @noinspection ClassOverridesFieldOfSuperClassInspection */
     protected array $temp = [];

bootstrap/app.php

@@ -13,11 +13,9 @@
 
 use App\Contracts\Music as MusicContract;
 use App\Music;
-use App\Support\Meting;
 use Illuminate\Console\OutputStyle;
 use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Log\LogManager;
-use Illuminate\Support\Facades\Concurrency;
 use Intonate\TinkerZero\TinkerZeroServiceProvider;
 use LaravelZero\Framework\Application;
 use Psr\Log\LoggerInterface;
@@ -31,15 +29,8 @@
         }
     })
     ->booting(static function (Application $app): void {
-        $app->singleton(
-            Music::class,
-            static fn (Application $app): Music => new Music(new Meting, Concurrency::driver())
-        );
-
-        $app->bind(
-            MusicContract::class,
-            static fn (Application $app): MusicContract => $app->make(Music::class)
-        );
+        $app->singleton(Music::class);
+        $app->bind(MusicContract::class, Music::class);
 
         $app->singletonIf(
             OutputStyle::class,