fix(EnvironmentLoader): remove invalid @var PHPDoc on constructor property

- Deleted @var tag placed above the __construct() method, which triggered PHPStan warnings:
  “PHPDoc tag @var above a method has no effect” and “@var does not specify variable name”.
- Constructor property promotion already provides the correct type (`string $basePath`), so the
  redundant and incorrect PHPDoc was removed.

No runtime changes; static-analysis cleanup only.

Author: megyptm

src/Core/EnvironmentLoader.php

@@ -58,9 +58,7 @@ final class EnvironmentLoader
     /**
      * 📂 **Base Directory Path**
      *
-     * The directory that contains the environment files. Typically the project root.
-     *
-     * @var string
+     * @param string $basePath Absolute path to the directory containing environment files
      */
     public function __construct(private readonly string $basePath)
     {