Login slots: 1,000 credits, at most 3 member slots live; viewer gets an open-in-tab link

Marty (2026-09-19): cap the login-ad slots. About 124 members sign in a day and every live
slot shares those views, so a fourth slot only thins the other three. Member slots only;
house login ads now step aside whenever a member slot is running (JSON: filtered out of the
pool; MySQL: ORDER BY house ASC). The 14 slots already running keep their term; new buys are
refused until one ends. Format label and chatbot updated.

mindfulmojo (email, 2026-09-19): the viewer frames the advertiser's page and both controls
meant "back"; some sites refuse to load inside a frame and signing up is easier in a full tab.
The viewer bar now carries "Open site in a new tab", set from the ad's target URL.

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

public/view.html

@@ -37,6 +37,7 @@
     <span class="vbrand">Instant<em>AdPay</em></span>
     <span class="vtimer" id="vTimer">…</span>
     <span class="vmsg" id="vMsg">Loading the ad…</span>
+    <a class="btn small sec" id="vOpen" target="_blank" rel="noopener" hidden title="Some sites refuse to load inside a frame, and signing up is easier in a full tab">Open site in a new tab ↗</a>
     <span class="vcheck" id="vCheck"><span class="prompt" id="vPrompt"></span><span id="vOpts"></span></span>
     <span class="vdone" id="vDone">
       <a class="btn small" href="/my#earn">Back to dashboard</a>
@@ -45,6 +46,6 @@
   </div>
   <iframe class="vframe" id="vFrame" sandbox="allow-scripts allow-same-origin allow-forms allow-popups" referrerpolicy="no-referrer" title="Advertiser site"></iframe>
 </div>
-<script src="/assets/view.js?v=20260908b"></script>
+<script src="/assets/view.js?v=20260919a"></script>
 </body>
 </html>