feat: add Top 50 Best Sellers badge in Weekly Sales

- Calculate static Top 50 ranking based on 2025 Sell Out (independent of filters)
- Display trophy badge with position number for Top 50 ASINs
- Badge shows 🏆 followed by rank (1-50)
- Ranking stays static regardless of date/country filters applied
- Pre-computed ranking based on cumulative 2025 data

App.tsx

@@ -254,6 +254,32 @@ const App: React.FC = () => {
   const filteredAdsData = useMemo(() => filterAdsData(adsData, filters), [adsData, filters]);
   const aggregatedData = useMemo(() => aggregateData(filteredData), [filteredData]);
 
+  // Calculate static Top 50 Best Sellers for 2025 (independent of current filters)
+  const top50Ranking2025 = useMemo(() => {
+    // Filter only 2025 data
+    const data2025 = rawData.filter(r => r.year === 2025);
+
+    // Aggregate Sell Out by ASIN
+    const asinTotals = new Map<string, number>();
+    data2025.forEach(r => {
+      const asin = r.asin.trim().toUpperCase();
+      asinTotals.set(asin, (asinTotals.get(asin) || 0) + r.sellOut);
+    });
+
+    // Sort by total Sell Out descending and take top 50
+    const sorted = Array.from(asinTotals.entries())
+      .sort((a, b) => b[1] - a[1])
+      .slice(0, 50);
+
+    // Create a Map of ASIN -> rank (1-50)
+    const rankMap = new Map<string, number>();
+    sorted.forEach(([asin], index) => {
+      rankMap.set(asin, index + 1);
+    });
+
+    return rankMap;
+  }, [rawData]);
+
   // Combine Sales & Ads Data dynamically based on current filters
   const combinedAdsData = useMemo(() => {
     return mergeSalesAndAdsData(filteredData, filteredAdsData);
@@ -427,7 +453,7 @@ const App: React.FC = () => {
               )}
               <Suspense fallback={<LoadingSpinner />}>
                 {view === 'table' && <DataGrid data={combinedAdsData} hasCustomerFilter={filters.customer.length > 0} adsData={filteredAdsData} />}
-                {view === 'weekly' && <WeeklyGrid data={combinedAdsData} />}
+                {view === 'weekly' && <WeeklyGrid data={combinedAdsData} top50Ranking={top50Ranking2025} />}
                 {view === 'movers' && <TopMovers data={filteredData} />}
               </Suspense>
             </div>

components/WeeklyGrid.tsx

@@ -5,6 +5,7 @@ import { pivotWeeklySalesData, WeeklyPivotRow } from '../services/dataProcessor'
 
 interface WeeklyGridProps {
     data: CombinedKPIs[];
+    top50Ranking?: Map<string, number>; // Static ranking of Top 50 ASINs by 2025 Sell Out
 }
 
 type SortConfig = {
@@ -26,7 +27,17 @@ const useDebounce = (value: string, delay: number) => {
     return debouncedValue;
 };
 
-const WeeklyGrid: React.FC<WeeklyGridProps> = ({ data }) => {
+// Top 50 Badge Component
+const Top50Badge: React.FC<{ rank: number }> = ({ rank }) => (
+    <span
+        className="inline-flex items-center justify-center px-1.5 py-0.5 rounded text-[9px] font-black bg-gradient-to-r from-amber-500 to-orange-500 text-white shadow-sm border border-amber-400/50"
+        title={`Top ${rank} Best Seller 2025`}
+    >
+        🏆 {rank}
+    </span>
+);
+
+const WeeklyGrid: React.FC<WeeklyGridProps> = ({ data, top50Ranking }) => {
     // Pivot data - memoized
     const { rows, weeks: allWeeks } = useMemo(() => pivotWeeklySalesData(data), [data]);
 
@@ -327,42 +338,46 @@ const WeeklyGrid: React.FC<WeeklyGridProps> = ({ data }) => {
                         </thead>
                         <tbody className="divide-y divide-white/5">
                             {paginatedRows.length > 0 ? (
-                                paginatedRows.map((row) => (
+                                paginatedRows.map((row) => {
-                                    <tr key={row.id} className="hover:bg-white/[0.02] transition-colors group">
+                                    const top50Rank = top50Ranking?.get(row.asin.trim().toUpperCase());
-                                        <td className="p-3 py-2 sticky left-0 z-10 bg-slate-900 group-hover:bg-slate-800 border-r border-white/10">
+                                    return (
-                                            <div className="flex flex-col">
+                                        <tr key={row.id} className="hover:bg-white/[0.02] transition-colors group">
-                                                <div className="flex items-center gap-2 mb-0.5">
+                                            <td className="p-3 py-2 sticky left-0 z-10 bg-slate-900 group-hover:bg-slate-800 border-r border-white/10">
-                                                    <span className="text-xs font-black text-indigo-400 uppercase tracking-tighter truncate max-w-[120px]">{row.sku || '-'}</span>
+                                                <div className="flex flex-col">
-                                                    <span className="text-[10px] font-bold text-slate-500 bg-slate-800 px-1.5 py-0.5 rounded border border-white/5">{row.asin}</span>
+                                                    <div className="flex items-center gap-2 mb-0.5">
-                                                </div>
+                                                        {top50Rank && <Top50Badge rank={top50Rank} />}
-                                                <span className="text-[11px] text-white/70 truncate w-[210px] leading-tight mb-1" title={row.title}>{row.title}</span>
+                                                        <span className="text-xs font-black text-indigo-400 uppercase tracking-tighter truncate max-w-[120px]">{row.sku || '-'}</span>
-                                                <span className="text-[9px] text-fuchsia-400/80 font-bold uppercase tracking-widest">{row.line}</span>
+                                                        <span className="text-[10px] font-bold text-slate-500 bg-slate-800 px-1.5 py-0.5 rounded border border-white/5">{row.asin}</span>
-                                            </div>
-                                        </td>
-                                        {weeks.map((week, idx) => {
-                                            const val = row.unitsByWeek[week] || 0;
-                                            const prevVal = row.unitsByWeek[weeks[idx + 1]] || 0;
-                                            const spend = row.spendByWeek[week] || 0;
-                                            return (
-                                                <td key={week} className={`p-3 py-2 text-center border-r border-white/5 align-middle ${sortConfig?.key === week ? 'bg-white/[0.01]' : ''}`}>
-                                                    <div className="flex flex-col items-center justify-center gap-0.5">
-                                                        <div className="flex items-center gap-1">
-                                                            <span className={`text-sm font-bold ${val > 0 ? (sortConfig?.key === week && sortConfig.metric === 'units' ? 'text-indigo-400' : 'text-white') : 'text-slate-700'}`}>
-                                                                {val > 0 ? val.toLocaleString('de-DE') : '-'}
-                                                            </span>
-                                                            {val > 0 && renderGrowth(val, prevVal)}
-                                                        </div>
-                                                        {spend > 0 && (
-                                                            <span className={`text-[11px] font-medium ${sortConfig?.key === week && sortConfig.metric === 'spend' ? 'text-amber-300' : 'text-indigo-400/80'}`}>
-                                                                €{spend.toLocaleString('de-DE', { minimumFractionDigits: 0, maximumFractionDigits: 0 })}
-                                                            </span>
-                                                        )}
                                                     </div>
-                                                </td>
+                                                    <span className="text-[11px] text-white/70 truncate w-[210px] leading-tight mb-1" title={row.title}>{row.title}</span>
-                                            );
+                                                    <span className="text-[9px] text-fuchsia-400/80 font-bold uppercase tracking-widest">{row.line}</span>
-                                        })}
+                                                </div>
-                                    </tr>
+                                            </td>
-                                ))
+                                            {weeks.map((week, idx) => {
+                                                const val = row.unitsByWeek[week] || 0;
+                                                const prevVal = row.unitsByWeek[weeks[idx + 1]] || 0;
+                                                const spend = row.spendByWeek[week] || 0;
+                                                return (
+                                                    <td key={week} className={`p-3 py-2 text-center border-r border-white/5 align-middle ${sortConfig?.key === week ? 'bg-white/[0.01]' : ''}`}>
+                                                        <div className="flex flex-col items-center justify-center gap-0.5">
+                                                            <div className="flex items-center gap-1">
+                                                                <span className={`text-sm font-bold ${val > 0 ? (sortConfig?.key === week && sortConfig.metric === 'units' ? 'text-indigo-400' : 'text-white') : 'text-slate-700'}`}>
+                                                                    {val > 0 ? val.toLocaleString('de-DE') : '-'}
+                                                                </span>
+                                                                {val > 0 && renderGrowth(val, prevVal)}
+                                                            </div>
+                                                            {spend > 0 && (
+                                                                <span className={`text-[11px] font-medium ${sortConfig?.key === week && sortConfig.metric === 'spend' ? 'text-amber-300' : 'text-indigo-400/80'}`}>
+                                                                    €{spend.toLocaleString('de-DE', { minimumFractionDigits: 0, maximumFractionDigits: 0 })}
+                                                                </span>
+                                                            )}
+                                                        </div>
+                                                    </td>
+                                                );
+                                            })}
+                                        </tr>
+                                    );
+                                })
                             ) : (
                                 <tr>
                                     <td colSpan={weeks.length + 1} className="p-10 text-center text-slate-500 italic text-base">