havre: the one-line key bar

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BQqGFv54JJTw7p3rgGjP7C

ventures/havre/index.html

@@ -33,6 +33,7 @@
 </header>
 
 <form class="keybar" id="keyform" autocomplete="off" aria-label="Your Venice API key">
+  <span id="keyset" class="keyset">VENICE KEY: <span id="keyset-where"></span> / <button type="button" class="linkish" id="keychange">change</button></span>
   <label for="keyin">VENICE API KEY</label>
   <input id="keyin" type="password" autocomplete="off" spellcheck="false" placeholder="paste it here">
   <button type="submit" class="btn inv" id="keysave">SAVE</button>