Add CryptographyException for cryptographic error handling

src/Socialbox/Exceptions/CryptographyException.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Socialbox\Exceptions;
+
+use Exception;
+use Throwable;
+
+class CryptographyException extends Exception
+{
+    /**
+     * Thrown when an error occurs during cryptography operations.
+     *
+     * @param string $message The error message
+     * @param int $code The error code
+     * @param Throwable|null $previous Optional. The previous exception used for the exception chaining
+     */
+    public function __construct(string $message, int $code = 0, Throwable $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+    }
+}