feat: invoice email resend, smaller table, column cleanup

Email resend (replaces broken PDF download):
- New AJAX action woodoo_send_invoice_email
- Finds Odoo invoice email template via ir.model.data (cached 24h)
  with fallback search on mail.template by model
- Calls mail.template.send_mail([template_id], invoice_id, force_send=True)
  via authenticated JSON-RPC — triggers Odoo to email the invoice
- Inline success/error row appears below the invoice row, auto-hides 6s
- Button shows "Enviando…" spinner state, resets on failure

Table columns:
- Remove "Saldo pendiente" column (was amount_residual)
- Rename "Total" → "Importe"
- min-width reduced to 700px now that there are 6 columns
- Font size reduced to .8rem for denser display

JS restructured so invoice email handler always runs (no early exit),
calendar handler only runs when WooDooCalendar data is present.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

templates/myaccount-invoices.php

@@ -13,6 +13,10 @@ defined( 'ABSPATH' ) || exit;
 
 wp_enqueue_style(  'woodoo-frontend' );
 wp_enqueue_script( 'woodoo-frontend' );
+wp_localize_script( 'woodoo-frontend', 'WooDooInvoices', [
+    'ajax_url' => admin_url( 'admin-ajax.php' ),
+    'nonce'    => wp_create_nonce( 'woodoo_invoice_email' ),
+] );
 ?>
 
 <div class="woodoo-invoices">
@@ -30,10 +34,9 @@ wp_enqueue_script( 'woodoo-frontend' );
                         <th class="col-number">Nº Factura</th>
                         <th class="col-date">Fecha</th>
                         <th class="col-due">Vencimiento</th>
-                        <th class="col-amount">Total</th>
-                        <th class="col-balance">Saldo pendiente</th>
+                        <th class="col-amount">Importe</th>
                         <th class="col-status">Estado</th>
-                        <th class="col-download">PDF</th>
+                        <th class="col-action">Envío</th>
                     </tr>
                 </thead>
                 <tbody>
@@ -43,11 +46,6 @@ wp_enqueue_script( 'woodoo-frontend' );
                         $pay_state     = $inv['payment_state'] ?? 'not_paid';
                         $badge_class   = WooDoo_Invoices::payment_state_class( $pay_state );
                         $badge_label   = WooDoo_Invoices::payment_state_label( $pay_state );
-                        $pdf_url       = add_query_arg( [
-                            'action'     => 'woodoo_invoice_pdf',
-                            'invoice_id' => $inv['id'],
-                            'nonce'      => wp_create_nonce( 'woodoo_invoice_pdf' ),
-                        ], admin_url( 'admin-ajax.php' ) );
                     ?>
                         <tr>
                             <td class="col-number woodoo-inv-number">
@@ -78,22 +76,18 @@ wp_enqueue_script( 'woodoo-frontend' );
                             <td class="col-amount woodoo-amount woodoo-nowrap">
                                 <?php echo esc_html( number_format( (float) $inv['amount_total'], 2, ',', '.' ) . ' ' . $currency ); ?>
                             </td>
-                            <td class="col-balance woodoo-amount woodoo-nowrap">
-                                <?php echo esc_html( number_format( (float) $inv['amount_residual'], 2, ',', '.' ) . ' ' . $currency ); ?>
-                            </td>
                             <td class="col-status woodoo-nowrap">
                                 <span class="woodoo-badge <?php echo esc_attr( $badge_class ); ?>">
                                     <?php echo esc_html( $badge_label ); ?>
                                 </span>
                             </td>
-                            <td class="col-download">
-                                <a href="<?php echo esc_url( $pdf_url ); ?>"
-                                   class="woodoo-btn woodoo-btn--sm"
-                                   target="_blank"
-                                   rel="noopener"
-                                   title="Descargar factura en PDF">
-                                    ↓ PDF
-                                </a>
+                            <td class="col-action">
+                                <button type="button"
+                                        class="woodoo-btn woodoo-btn--sm woodoo-send-invoice"
+                                        data-id="<?php echo esc_attr( $inv['id'] ); ?>"
+                                        title="Reenviar factura por correo electrónico">
+                                    ✉ Reenviar
+                                </button>
                             </td>
                         </tr>
                     <?php endforeach; ?>