Auth: convert auth views and verification email to Nova layout

app/Support/AvatarUrl.php

@@ -19,9 +19,13 @@ class AvatarUrl
             return self::default();
         }
 
-        $base = rtrim((string) config('cdn.avatar_url', 'https://file.skinbase.org'), '/');
+        $base = rtrim((string) config('cdn.avatar_url', 'https://files.skinbase.org'), '/');
 
-        return sprintf('%s/avatars/%d/%d.webp?v=%s', $base, $userId, $size, $avatarHash);
+        // Use hash-based path: avatars/ab/cd/{hash}/{size}.webp?v={hash}
+        $p1 = substr($avatarHash, 0, 2);
+        $p2 = substr($avatarHash, 2, 2);
+
+        return sprintf('%s/avatars/%s/%s/%s/%d.webp?v=%s', $base, $p1, $p2, $avatarHash, $size, $avatarHash);
     }
 
     public static function default(): string