Improve caching, performance and add dry-run

app/Bunny/Filesystem/Exceptions/FilesystemException.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Bunny\Filesystem\Exceptions;
+
+use Exception;
+use Psr\Http\Message\ResponseInterface;
+
+class FilesystemException extends Exception
+{
+    public static function fromResponse(ResponseInterface $response): self
+    {
+        return new self(sprintf(
+            'The storage api returns %s which is an invalid status code.',
+            $response->getStatusCode()
+        ));
+    }
+
+    public static function fromPrevious(Exception $exception): self
+    {
+        return new self($exception->getMessage(), 0, $exception);
+    }
+}