Add visual debug info to show data count in sparkline area

src/views/RequestView.vue

@@ -27,6 +27,10 @@
           <div class="asset-body">
             <div class="spark-wrap">
               <MiniEchart :data="a.month" :color="a.sparkColor" />
+              <!-- Debug info -->
+              <div style="position:absolute; top:5px; left:5px; font-size:10px; color:#666;">
+                Data: {{ a.month?.length || 0 }} items
+              </div>
             </div>
 
             <div class="asset-stats">
@@ -478,7 +482,7 @@ export default {
 .type-stock { background:#f6fffb; border-color:#d9fbe6; color:#064e3b; }
 
 .asset-body{ display:flex; flex-direction:column; gap:10px; }
-.spark-wrap{ width:100%; height:90px; overflow:hidden; border-radius:8px; background:#F6F8FB; border:1px solid #E7ECF3; }
+.spark-wrap{ width:100%; height:90px; overflow:hidden; border-radius:8px; background:#F6F8FB; border:1px solid #E7ECF3; position:relative; }
 .asset-stats{ display:grid; grid-template-columns:repeat(4, minmax(0, 1fr)); gap:10px; }
 .stat{ background:#F6F8FB; border:1px solid #E7ECF3; border-radius:10px; padding:8px; min-width:0; }
 .stat-label{ font-size:11px; color:#6b7280; margin-bottom:2px; }