Feat: add hover tooltip on TOTALS row in Weekly Sales with WoW and YoY comparison

Shows previous week and same week prior year values (Units, Revenue, Ads Spend, GV) with % change indicators when hovering any week cell in the TOTALS row.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

App.tsx

@@ -921,6 +921,7 @@ const App: React.FC = () => {
                     onWocFilterChange={(s) => setFilters(prev => ({ ...prev, woc: s }))}
                     top50Mode={filters.customer.includes('Amazon UK') ? 'uk' : 'eu'}
                     buyBoxLostMap={buyBoxLostMap}
+                    velocityMap={velocityMap}
                   />
                 </div>
               </Suspense>
@@ -947,7 +948,16 @@ const App: React.FC = () => {
 
               <Suspense fallback={<LoadingSpinner />}>
                 <div className={view === 'vendor' ? '' : 'hidden'}>
-                  <VendorDataView bsrData={filteredBsrData} asinMetadata={globalAsinMetadata} buyBoxLostMap={buyBoxLostMap} combinedSalesData={combinedAdsData} />
+                  <VendorDataView 
+                    bsrData={filteredBsrData} 
+                    asinMetadata={globalAsinMetadata} 
+                    buyBoxLostMap={buyBoxLostMap} 
+                    combinedSalesData={combinedAdsData} 
+                    stockMap={stockMap}
+                    vendorStockMap={vendorStockMap}
+                    top50Mode={filters.customer.includes('Amazon UK') ? 'uk' : 'eu'}
+                    velocityMap={velocityMap}
+                  />
                 </div>
               </Suspense>
 
@@ -962,7 +972,15 @@ const App: React.FC = () => {
 
               <Suspense fallback={<LoadingSpinner />}>
                 <div className={view === 'mkt' ? '' : 'hidden'}>
-                  <MktDataView rawData={filteredData} adsData={mktAdsData} />
+                  <MktDataView 
+                    rawData={filteredData} 
+                    adsData={mktAdsData} 
+                    stockMap={stockMap}
+                    vendorStockMap={vendorStockMap}
+                    top50Mode={filters.customer.includes('Amazon UK') ? 'uk' : 'eu'}
+                    velocityMap={velocityMap}
+                    buyBoxLostMap={buyBoxLostMap}
+                  />
                 </div>
               </Suspense>