Add refactoring todo

The refactoring is worthwhile because:

Makes the code more maintainable and testable
Breaks down complex logic into smaller, focused methods
Preserves the public API while improving internal organization
Reduces the cognitive load when reading the Filesystem class
We can make it swappable in testing through the service container

packages/framework/src/Foundation/Kernel/Filesystem.php

@@ -189,6 +189,8 @@ public function smartGlob(string $pattern, int $flags = 0): Collection
     /** @return \Illuminate\Support\Collection<int, string> */
     public function findFiles(string $directory, string|array|false $matchExtensions = false, bool $recursive = false): Collection
     {
+        // TODO: Extract to internal class
+
         if (! \Hyde\Facades\Filesystem::isDirectory($directory)) {
             return collect();
         }