PolHunter hand-off, nav entry, and the ledger embed

/api/my/polhunter signs a member across to polhunter.com with a five-minute single-use HMAC
token (memberId, email, wallet, username); PolHunter has no sign-up and no mailer, this is the
only way in. A PolHunter entry in the dashboard nav. The PolHunter embed on the public ledger
with one slot beside the payout feed; CSP allows polhunter.com.

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

public/ledger.html

@@ -30,6 +30,7 @@
   </section>
   <div class="card" id="adSlotBanner" hidden></div>
   <div class="card" style="padding:0">
+    <div data-ph-slot="0" style="margin:0 0 10px"></div>
     <div class="feed" id="feed"><div class="row muted">Loading recent history…</div></div>
   </div>
   <div class="card small" id="adSlotText" hidden></div>
@@ -39,6 +40,7 @@
 </div>
 <script src="/assets/common.js?v=20260916a"></script>
 <script src="/assets/ledger.js?v=20260906m"></script>
+<script src="https://polhunter.com/embed.js" data-slots="1" async></script>
 <script src="/assets/chat.js?v=20260906m"></script>
 </body>
 </html>