style: remove connection status, move tokens to far right

- Remove "Connected/Disconnected" indicator to save header space
- Move token count to the far right of the header (after settings icon)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/web/public/index.html

@@ -30,11 +30,6 @@
           <span class="font-size-display" id="fontSizeDisplay">14</span>
           <button class="btn-icon-header btn-sm" onclick="app.increaseFontSize()" title="Increase font (Ctrl++)">A+</button>
         </div>
-        <div class="connection-status" id="connectionStatus">
-          <span class="status-dot"></span>
-          <span class="status-text">Connecting</span>
-        </div>
-        <div class="header-tokens" id="headerTokens" title="Total tokens across all sessions">0 tokens</div>
         <div class="header-system-stats" id="headerSystemStats" title="System resource usage">
           <div class="stat-item">
             <span class="stat-label">CPU</span>
@@ -52,6 +47,7 @@
           </div>
         </div>
         <button class="btn-icon-header" onclick="app.openAppSettings()" title="App Settings">&#x2699;</button>
+        <div class="header-tokens" id="headerTokens" title="Total tokens across all sessions">0 tokens</div>
       </div>
     </header>