fix(quotes): show latest receipt time on partial arrivals

For accepted quotes with PM-confirmed (partial) receipts the dashboard row
only showed «رسیده X از Y — در راه Z» with no timestamp (quote header
arrived_date is set only when everything arrives). The cell now also shows
«آخرین رسید: <date time>» computed from the newest item receipt; arrived
quotes keep the arrival date with a last-receipt fallback.

frontend/src/pages/Dashboard/QuoteCard.tsx

@@ -97,6 +97,20 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
   }
 
   let arrivedCell: React.ReactNode;
+  // آخرین لحظه‌ی رسید ثبت‌شده بین قلم‌ها (رسیدهای جزیی توسط مدیر پروژه)
+  const lastReceiptAt = activeItems.reduce<Date | null>((acc, li) => {
+    if (!li.arrived_date) return acc;
+    const t = new Date(li.arrived_date).getTime();
+    if (Number.isNaN(t)) return acc;
+    return !acc || t > acc.getTime() ? new Date(li.arrived_date) : acc;
+  }, null);
+  const receiptTimeLine =
+    lastReceiptAt != null ? (
+      <span className="block text-[10.5px] font-normal text-muted">
+        آخرین رسید: {fmtDateTime(lastReceiptAt.toISOString())}
+      </span>
+    ) : null;
+
   if (q.status === "accepted") {
     if (q.arrived_date) {
       arrivedCell = <span className="tabular-nums">{fmtDateTime(q.arrived_date)}</span>;
@@ -104,13 +118,18 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
       arrivedCell = (
         <span className="tabular-nums">
           رسیده {fmtNum(receivedSum)} از {fmtNum(orderedSum)} — در راه {fmtNum(Math.max(0, orderedSum - receivedSum))}
+          {receiptTimeLine}
         </span>
       );
     } else {
       arrivedCell = <span className="text-muted">در انتظار PM</span>;
     }
-  } else if (q.arrived_date) {
-    arrivedCell = <span className="tabular-nums">{fmtDateTime(q.arrived_date)}</span>;
+  } else if (q.status === "arrived") {
+    arrivedCell = (
+      <span className="tabular-nums">
+        {fmtDateTime(q.arrived_date || (lastReceiptAt ? lastReceiptAt.toISOString() : ""))}
+      </span>
+    );
   } else {
     arrivedCell = <span className="text-muted">—</span>;
   }