Update demo copy (Excel date cells, formats)

index.html

@@ -198,7 +198,7 @@ footer b{color:var(--ink-2);font-weight:600}
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       <div class="panel-h"><h2>From the installed tool</h2></div>
       <div class="exports" style="grid-template-columns:1fr;gap:11px">
-        <div class="ex"><h3><span class="g" style="background:#1d6f42">XLS</span> Excel workbook</h3><p>Styled Daily_Log table, dashboard formulas, and native charts.</p><code>eng-tracker init</code></div>
+        <div class="ex"><h3><span class="g" style="background:#1d6f42">XLS</span> Excel workbook</h3><p>Styled Daily_Log table with native date cells, currency formats, and status conditional formatting, plus dashboard formulas and native charts.</p><code>eng-tracker init</code></div>
         <div class="ex"><h3><span class="g" style="background:#2b579a">DOC</span> Word report</h3><p>A weekly report for management: totals, breakdowns, blockers, part costs.</p><code>eng-tracker report</code></div>
         <div class="ex"><h3><span class="g" style="background:#c43e1c">PPT</span> PowerPoint deck</h3><p>A status deck with KPI slides and native charts.</p><code>eng-tracker deck</code></div>
       </div>