chore: cleanup, add PHPStan type annotations

src/Email/Mailer.php

@@ -14,6 +14,9 @@ use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class Mailer
 {
+    /**
+     * @param array<string, mixed> $defaults
+     */
     public function __construct(
         private readonly MailerInterface $mailer,
         private readonly BodyRendererInterface $bodyRenderer,
@@ -22,6 +25,10 @@ class Mailer
     ) {
     }
 
+    /**
+     * @param array<string, mixed> $context
+     * @param array<string, mixed> $options
+     */
     public function createAndSendEmail(array $context, array $options): void
     {
         $config = $this->resolveConfig($options);
@@ -35,6 +42,10 @@ class Mailer
         }
     }
 
+    /**
+     * @param array<string, mixed> $context
+     * @param array<string, mixed> $config
+     */
     public function create(array $context, array $config): TemplatedEmail
     {
         $email = (new TemplatedEmail())
@@ -73,6 +84,10 @@ class Mailer
         }
     }
 
+    /**
+     * @param array<string, mixed> $options
+     * @return array<string, mixed>
+     */
     private function resolveConfig(array $options): array
     {
         $resolver = new OptionsResolver();