Fix guest join flow redirecting to Care marketing page.

Guests were sent through silent SSO after entering the meeting room because
/room routes required auth; failed SSO fell back to leftover Care config.

Co-authored-by: Cursor <cursoragent@cursor.com>

config/ladill.php

@@ -1,6 +1,6 @@
 <?php
 
 return [
-    'product_slug' => 'care',
-    'marketing_url' => env('LADILL_MARKETING_URL', 'https://ladill.com/products/care'),
+    'product_slug' => 'meet',
+    'marketing_url' => env('LADILL_MARKETING_URL', 'https://ladill.com'),
 ];