Restore complete declaration view layout with totals

Enhanced Declaration View:
- Restored all declaration fields (number, name, period, status, created date)
- Added totals section with VAT collected, deductible, net due, and credit
- Bold formatting for totals to highlight important amounts
- Added translations for all new fields
- Complete layout with all necessary information

declarationtva_view.php

@@ -103,6 +103,29 @@ print '<td>' . $langs->trans("CreatedDate") . '</td>';
 print '<td>' . dol_print_date($declarationtva->created_date, 'dayhour') . '</td>';
 print '</tr>';
 
+// Add totals section
+print '<tr>';
+print '<td><strong>' . $langs->trans("TotalVATCollected") . '</strong></td>';
+print '<td><strong>' . price($declarationtva->total_vat_collected) . '</strong></td>';
+print '</tr>';
+
+print '<tr>';
+print '<td><strong>' . $langs->trans("TotalVATDeductible") . '</strong></td>';
+print '<td><strong>' . price($declarationtva->total_vat_deductible) . '</strong></td>';
+print '</tr>';
+
+print '<tr>';
+print '<td><strong>' . $langs->trans("NetVATDue") . '</strong></td>';
+print '<td><strong>' . price($declarationtva->net_vat_due) . '</strong></td>';
+print '</tr>';
+
+if ($declarationtva->vat_credit > 0) {
+    print '<tr>';
+    print '<td><strong>' . $langs->trans("VATCredit") . '</strong></td>';
+    print '<td><strong>' . price($declarationtva->vat_credit) . '</strong></td>';
+    print '</tr>';
+}
+
 print '</table>';
 print '</div>';
 

langs/en_US/declarationtva.lang

@@ -430,3 +430,6 @@ Recalculate = Recalculate
 DeclarationRecalculated = Declaration recalculated successfully
 ErrorRecalculatingDeclaration = Error recalculating declaration
 NoCA3Data = No CA-3 data calculated yet. Click Recalculate to calculate amounts.
+TotalVATCollected = Total VAT Collected
+TotalVATDeductible = Total VAT Deductible
+VATCredit = VAT Credit

langs/fr_FR/declarationtva.lang

@@ -419,3 +419,6 @@ Recalculate = Recalculer
 DeclarationRecalculated = Déclaration recalculée avec succès
 ErrorRecalculatingDeclaration = Erreur lors du recalcul de la déclaration
 NoCA3Data = Aucune donnée CA-3 calculée. Cliquez sur Recalculer pour calculer les montants.
+TotalVATCollected = TVA Collectée Totale
+TotalVATDeductible = TVA Déductible Totale
+VATCredit = Crédit de TVA