feat: improve Week Coverage visibility, calculation robustness, and add aggregate WOC to grid totals and forecast view

services/dataProcessor.ts

@@ -2470,11 +2470,24 @@ export const calculateVelocityMap = (data: SalesRecord[]): Map<string, number> =
     if (validYears.length === 0) return new Map();
 
     const latestYear = validYears.reduce((a, b) => Math.max(a, b), 0);
+    
+    // Find the latest week with actual units > 0 in the latest year
+    // This avoids using future weeks with 0 sales that might be in the data
     const yearData = data.filter(r => r.year === latestYear);
-    const latestWeek = yearData.length > 0 
-        ? (yearData.map(r => r.week).filter(w => w !== undefined) as number[])
-            .reduce((a, b) => Math.max(a, b), 0)
-        : 0;
+    const weeksWithSales = yearData
+        .filter(r => (r.units || 0) > 0 && r.week !== undefined)
+        .map(r => r.week as number);
+    
+    let latestWeek = 0;
+    if (weeksWithSales.length > 0) {
+        latestWeek = Math.max(...weeksWithSales);
+    } else {
+        // Fallback to highest week if no sales found
+        latestWeek = yearData.length > 0 
+            ? (yearData.map(r => r.week).filter(w => w !== undefined) as number[])
+                .reduce((a, b) => Math.max(a, b), 0)
+            : 0;
+    }
 
     const last4WeeksKeys = new Set<string>();
     for (let i = 0; i < 4; i++) {
@@ -2492,7 +2505,7 @@ export const calculateVelocityMap = (data: SalesRecord[]): Map<string, number> =
         if (r.week === undefined) return;
         if (last4WeeksKeys.has(`${r.year}|${r.week}`)) {
             const key = r.asin.trim().toUpperCase();
-            asin4WeekSales.set(key, (asin4WeekSales.get(key) || 0) + r.units);
+            asin4WeekSales.set(key, (asin4WeekSales.get(key) || 0) + (r.units || 0));
         }
     });