Code pill: six fixed cells on their own row, tap to copy, wrapping header; claim error names the length when it is not 6; board hint

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

public/app.html

@@ -46,6 +46,6 @@
   <footer class="foot">Rewards are for completed missions, not income. The daily pool is limited; when it is spent, claims close until midnight Central. Cryptocurrency involves risk of loss.</footer>
 </div>
 <div class="modal" id="shareModal" hidden><div class="modal-card"><button class="modal-x" id="shareClose" type="button" aria-label="Close">×</button><div id="shareBody"></div></div></div>
-<script src="/app.js?v=9"></script>
+<script src="/app.js?v=10"></script>
 </body>
 </html>