陆运产品价无费名时默认陆运费；看板指标与工单列表共用起止日，趋势按日铺点。

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-backend/src/views/inquiry/dashboard/index.vue

@@ -56,11 +56,15 @@ const activePoint = ref<string | null>(null);
 const INQUIRY_PLOT_TOP = 36;
 const INQUIRY_PLOT_BOTTOM = 188;
 
+/**
+ * 粗粒度 range 仅作后端无 dateFrom/dateTo 时的回退；正式请求一律带显式日期。
+ * 注意：不可再把「单日」映射成 today——today 是日历今天，不是所选那一天。
+ */
 function resolveRange(): string {
   const from = new Date(dateFrom.value);
   const to = new Date(dateTo.value);
   const days = Math.max(0, Math.round((to.getTime() - from.getTime()) / 86400000));
-  if (days <= 0) return "today";
+  if (days <= 0) return "1d";
   if (days <= 6) return "7d";
   return "30d";
 }
@@ -88,7 +92,12 @@ function onDateRangeChange() {
 async function loadMetrics() {
   loading.value = true;
   try {
-    const res: any = await getDashboardMetrics(resolveRange());
+    const req = {
+      range: resolveRange(),
+      dateFrom: dateFrom.value,
+      dateTo: dateTo.value,
+    };
+    const res: any = await getDashboardMetrics(req);
     const data = res?.result || res || {};
     todayMetrics.value = (data.metrics || []) as MetricCard[];
     inquiryTrend.value = ((data.trend || []) as any[]).map((p) => ({