Hash the 40k hidden-players list and drop the old PayPal block

Hidden players are now matched by a hash of their full name or nickname
(src/hide.js) so the names aren't readable in the source or bundle.
Also removes the commented-out PayPal section from the Kingmaker
sign-up page.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

sites/kingmaker/signups.html

@@ -18,19 +18,6 @@
 
       <div class="divider"></div>
 
-      <!-- commenting out paypal information
-      <section class="mb-8">
-        <h2 class="text-2xl font-semibold mb-3">League Entry Fee</h2>
-        <p class="mb-4">In addition to signing-up below, please pay your league entry fee of $## via PayPal to secure your spot.</p>
-        <a href="https://paypal.me/REDACTED" target="_blank" rel="noopener noreferrer" class="btn btn-primary">
-          Pay Entry Fee via PayPal
-        </a>
-      </section>
-
-      <div class="divider"></div>
-      -->
-
-
       <!-- Google Form embed — replace the src URL with your form's embed link -->
       <div class="w-full">
         <iframe