One way in: email sign-in only; wallet-only sessions finish setup by email

- Remove the "sign in with just your wallet" door from the sign-in card.
- A wallet-only session (no account) is walked to the email card with a
  finish-setup note; verifying the code links that wallet to the account
  and retires the wallet-only session, so member #, purchases and payouts
  stay attached and username/profile work.

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

public/my.html

@@ -27,6 +27,8 @@
         <b id="sponsorNoteName" style="font-size:19px;color:var(--mint)"></b></p>
     </div>
     <div class="card" id="magicCard" hidden>
+      <p id="mcFinish" class="small" style="color:var(--amber);margin:0 0 10px" hidden>Your wallet is signed in, but it has no account yet.
+        Add your email to finish setting up. Your wallet, member number and purchases stay attached.</p>
       <h3>Sign in or join free</h3>
       <p class="muted small">Type your email and we send a 6-digit code. No password to invent,
         no password to forget. New emails get a free account automatically.</p>
@@ -50,8 +52,6 @@
         <button class="btn sec" id="loginBtn">Log in</button>
       </div>
     </div>
-    <p class="small muted">Crypto-native? You can also <a href="#" id="walletSigninLink">sign in with just your wallet</a>.
-      One free signature, no email needed.</p>
     <p class="small muted"><a href="/">← Back to the site</a></p>
     <div class="card" id="adSlotLogin" hidden></div>
   </div>
@@ -697,7 +697,7 @@
 </div>
 <script src="/assets/common.js?v=20260909a"></script>
 <script src="/assets/wallet.js?v=20260908t"></script>
-<script src="/assets/my.js?v=20260909a"></script>
+<script src="/assets/my.js?v=20260909b"></script>
 <script src="/assets/chat.js?v=20260907l"></script>
 </body>
 </html>