Fix meeting join links pointing at the Care domain.

Build join URLs from meet.ladill.com config instead of APP_URL, which was still inherited from the Care app template.

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

app/Models/Room.php

@@ -113,6 +113,6 @@ class Room extends Model
 
     public function joinUrl(): string
     {
-        return url('/r/'.$this->uuid);
+        return rtrim((string) config('app.meet_url', 'https://meet.ladill.com'), '/').'/r/'.$this->uuid;
     }
 }