fix: Exporter button now exports all scanned data fast

Uses the fast /transactions/export endpoint instead of the paginated
one, exports ALL transactions (not limited by current page), and
uses fixed column widths to avoid slow computation.

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

packages/web/src/components/dashboard/TransactionTable.tsx

@@ -133,52 +133,43 @@ export default function TransactionTable() {
   const handleExport = useCallback(async () => {
     setExporting(true);
     try {
-      // Fetch all transactions matching current filters (no pagination)
+      // Use fast export endpoint with current filters
       const params = new URLSearchParams();
-      params.set('limit', '10000');
-      if (filters.search) params.set('search', filters.search);
       if (filters.branch) params.set('branch', filters.branch);
-      if (filters.status) params.set('status', filters.status);
-      if (filters.reviewed) params.set('reviewed', filters.reviewed);
       if (filters.from) params.set('from', filters.from);
       if (filters.to) params.set('to', filters.to);
-      params.set('sortBy', filters.sortBy || 'date');
-      params.set('sortOrder', filters.sortOrder || 'desc');
 
-      const result = await api.get<{ transactions: any[] }>(`/transactions?${params}`);
+      const result = await api.get<{ transactions: any[] }>(`/transactions/export?${params}`);
       const rows = result.transactions;
 
       if (rows.length === 0) return;
 
       // Build worksheet data
-      const wsData = rows.map((tx: any) => {
-        const { percent: accuracy } = getMatchAccuracy(tx.amount, tx.rawEmail);
-        return {
-          [t('table.date')]: tx.date ? new Date(tx.date).toLocaleDateString('fr-CA', { timeZone: 'America/Toronto' }) : '',
-          [t('table.sender')]: tx.sender || '',
-          [t('table.envelopeNumber')]: tx.envelopeNumber || '',
-          [t('table.amount')]: tx.amount,
-          'Currency': tx.currency || 'CAD',
-          [t('table.reference')]: tx.reference || '',
-          [t('table.branch')]: tx.branch || 'Montreal',
-          [t('table.accuracy')]: accuracy === -1 ? '' : `${accuracy}%`,
-          [t('table.status')]: tx.reviewed ? t('status.verified') : t('status.notVerified'),
-          'Email': tx.recipientEmail || '',
-          'Message': tx.message || '',
-        };
-      });
+      const wsData = rows.map((tx: any) => ({
+        [t('table.date')]: tx.date ? new Date(tx.date).toLocaleDateString('fr-CA', { timeZone: 'America/Toronto' }) : '',
+        [t('table.sender')]: tx.sender || '',
+        [t('table.amount')]: tx.amount,
+        'Currency': tx.currency || 'CAD',
+        [t('table.reference')]: tx.reference || '',
+        [t('table.branch')]: tx.branch || 'Montreal',
+        [t('table.status')]: tx.reviewed ? t('status.verified') : t('status.notVerified'),
+        'Email': tx.recipientEmail || '',
+        'Message': tx.message || '',
+      }));
 
       const ws = XLSX.utils.json_to_sheet(wsData);
-
-      // Auto-size columns
-      const colWidths = Object.keys(wsData[0]).map((key) => {
-        const maxLen = Math.max(
-          key.length,
-          ...wsData.map((row: any) => String(row[key] ?? '').length)
-        );
-        return { wch: Math.min(maxLen + 2, 40) };
-      });
-      ws['!cols'] = colWidths;
+      // Fixed column widths for speed
+      ws['!cols'] = [
+        { wch: 12 },  // Date
+        { wch: 25 },  // Sender
+        { wch: 12 },  // Amount
+        { wch: 6 },   // Currency
+        { wch: 20 },  // Reference
+        { wch: 20 },  // Branch
+        { wch: 12 },  // Status
+        { wch: 35 },  // Email
+        { wch: 30 },  // Message
+      ];
 
       const wb = XLSX.utils.book_new();
       XLSX.utils.book_append_sheet(wb, ws, 'Transactions');