Allow nullable asset packages

packages/support/src/Assets/Asset.php

@@ -14,7 +14,7 @@ abstract class Asset
 
     protected bool $isLoadedOnRequest = false;
 
-    protected string $package;
+    protected ?string $package = null;
 
     final public function __construct(string $id, ?string $path = null)
     {
@@ -39,14 +39,14 @@ abstract class Asset
         return $this->id;
     }
 
-    public function package(string $package): static
+    public function package(?string $package): static
     {
         $this->package = $package;
 
         return $this;
     }
 
-    public function getPackage(): string
+    public function getPackage(): ?string
     {
         return $this->package;
     }
@@ -63,15 +63,21 @@ abstract class Asset
 
     public function getVersion(): string
     {
+        $package = $this->getPackage();
+
+        if (blank($package)) {
+            return InstalledVersions::getVersion('filament/support');
+        }
+
         if (
-            ($this->getPackage() === 'app') &&
+            ($package === 'app') &&
             filled($appVersion = FilamentAsset::getAppVersion())
         ) {
             return $appVersion;
         }
 
         try {
-            return InstalledVersions::getVersion($this->getPackage());
+            return InstalledVersions::getVersion($package);
         } catch (Throwable $exception) {
             return InstalledVersions::getVersion('filament/support');
         }