feat: Add payment history section to BillingManager, update form labels to Russian, and remove country flag display for improved clarity

frontend/src/BillingManager.jsx

@@ -17,7 +17,8 @@ import {
   IconDownload,
   IconUpload,
   IconEye,
-  IconEyeOff
+  IconEyeOff,
+  IconHistory
 } from '@tabler/icons-react';
 
 const API_URL = '/api';
@@ -166,7 +167,7 @@ function BillingManager() {
 
   const handleAddSubmit = () => {
     if (!newItem.hostName || !newItem.country || !newItem.provider) {
-      setError('Пожалуйста, заполните обязательные поля: Host Name, Country, Provider');
+      setError('Пожалуйста, заполните обязательные поля: Имя хоста, Страна, Провайдер');
       return;
     }
     
@@ -180,7 +181,7 @@ function BillingManager() {
 
   const handleEditSubmit = () => {
     if (!editingItem.hostName || !editingItem.country || !editingItem.provider) {
-      setError('Пожалуйста, заполните обязательные поля: Host Name, Country, Provider');
+      setError('Пожалуйста, заполните обязательные поля: Имя хоста, Страна, Провайдер');
       return;
     }
     
@@ -249,15 +250,6 @@ function BillingManager() {
   const uniqueCountries = [...new Set(billingData.map(item => item.country).filter(Boolean))];
   const uniqueStatuses = [...new Set(billingData.map(item => item.status).filter(Boolean))];
 
-  function countryToFlag(isoCode) {
-    if (!isoCode) return '🌍';
-    const codePoints = isoCode
-      .toUpperCase()
-      .split('')
-      .map(char => 127397 + char.charCodeAt());
-    return String.fromCodePoint(...codePoints);
-  }
-
   function formatDate(dateString) {
     if (!dateString) return 'Не указано';
     try {
@@ -428,7 +420,7 @@ function BillingManager() {
                 >
                   <option value="">Все страны</option>
                   {uniqueCountries.map(country => (
-                    <option key={country} value={country}>{countryToFlag(country)} {country}</option>
+                    <option key={country} value={country}>{country}</option>
                   ))}
                 </select>
               </div>
@@ -615,9 +607,6 @@ function BillingManager() {
                   <tr key={item.id}>
                     <td>
                       <div className="d-flex align-items-center">
-                        <span className="avatar avatar-sm me-2">
-                          {countryToFlag(item.country)}
-                        </span>
                         <div>
                           <div className="fw-bold">{item.hostName}</div>
                           {item.loginUrl && (
@@ -638,7 +627,6 @@ function BillingManager() {
                     </td>
                     <td>
                       <div className="d-flex align-items-center">
-                        <span className="me-2">{countryToFlag(item.country)}</span>
                         {item.country}
                       </div>
                     </td>
@@ -743,6 +731,71 @@ function BillingManager() {
         </div>
       </div>
 
+      {/* История платежей */}
+      <div className="card mt-4">
+        <div className="card-header">
+          <h3 className="card-title">
+            <IconHistory size={20} className="me-2" />
+            История платежей
+          </h3>
+        </div>
+        <div className="card-body">
+          <div className="table-responsive">
+            <table className="table table-vcenter">
+              <thead>
+                <tr>
+                  <th>Имя хостера</th>
+                  <th>Дата платежа</th>
+                  <th>Сумма</th>
+                  <th>Валюта</th>
+                  <th>Статус</th>
+                </tr>
+              </thead>
+              <tbody>
+                {billingData
+                  .filter(item => item.lastPaymentDate && item.lastPaymentAmount)
+                  .sort((a, b) => new Date(b.lastPaymentDate) - new Date(a.lastPaymentDate))
+                  .slice(0, 10)
+                  .map(item => (
+                    <tr key={item.id}>
+                      <td>
+                        <div className="fw-bold">{item.hostName}</div>
+                        <div className="text-muted small">{item.provider}</div>
+                      </td>
+                      <td>{formatDate(item.lastPaymentDate)}</td>
+                      <td>
+                        <div className="fw-bold">
+                          {formatCurrency(item.lastPaymentAmount, item.lastPaymentCurrency)}
+                        </div>
+                        <div className="text-muted small">
+                          {formatCurrencyInRUB(item.lastPaymentAmount, item.lastPaymentCurrency)}
+                        </div>
+                      </td>
+                      <td>
+                        <span className="badge bg-blue-lt text-blue">
+                          {item.lastPaymentCurrency || 'USD'}
+                        </span>
+                      </td>
+                      <td>
+                        <span className="badge bg-success-lt text-success">
+                          Оплачен
+                        </span>
+                      </td>
+                    </tr>
+                  ))}
+                {billingData.filter(item => item.lastPaymentDate && item.lastPaymentAmount).length === 0 && (
+                  <tr>
+                    <td colSpan="5" className="text-center text-muted py-4">
+                      История платежей пуста
+                    </td>
+                  </tr>
+                )}
+              </tbody>
+            </table>
+          </div>
+        </div>
+      </div>
+
       {/* Модальные окна */}
       <AddBillingModal
         show={showAddModal}
@@ -775,7 +828,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
   if (!show) return null;
 
   return (
-    <div className="modal show d-block" tabIndex="-1">
+    <div className="modal show d-block" tabIndex="-1" style={{ backgroundColor: 'rgba(0,0,0,0.5)' }}>
       <div className="modal-dialog modal-lg">
         <div className="modal-content">
           <div className="modal-header">
@@ -785,7 +838,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
           <div className="modal-body">
             <div className="row g-3">
               <div className="col-md-6">
-                <label className="form-label">Host Name *</label>
+                <label className="form-label">Имя хоста *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -795,7 +848,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Purpose</label>
+                <label className="form-label">Назначение</label>
                 <select
                   className="form-select"
                   value={item.purpose}
@@ -812,7 +865,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 </select>
               </div>
               <div className="col-md-6">
-                <label className="form-label">Country *</label>
+                <label className="form-label">Страна *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -822,7 +875,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Provider *</label>
+                <label className="form-label">Провайдер *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -832,25 +885,27 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Login URL</label>
+                <label className="form-label">Ссылка для входа</label>
                 <input
                   type="text"
                   className="form-control"
                   value={item.loginUrl}
                   onChange={(e) => onItemChange({ ...item, loginUrl: e.target.value })}
+                  placeholder="example.com"
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Monthly Cost</label>
+                <label className="form-label">Месячная стоимость</label>
                 <input
                   type="number"
+                  step="0.01"
                   className="form-control"
                   value={item.monthlyCost}
                   onChange={(e) => onItemChange({ ...item, monthlyCost: parseFloat(e.target.value) || 0 })}
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Next Payment Date</label>
+                <label className="form-label">Дата следующего платежа</label>
                 <input
                   type="date"
                   className="form-control"
@@ -859,7 +914,7 @@ function AddBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Status</label>
+                <label className="form-label">Статус</label>
                 <select
                   className="form-select"
                   value={item.status}
@@ -889,7 +944,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
   if (!show) return null;
 
   return (
-    <div className="modal show d-block" tabIndex="-1">
+    <div className="modal show d-block" tabIndex="-1" style={{ backgroundColor: 'rgba(0,0,0,0.5)' }}>
       <div className="modal-dialog modal-lg">
         <div className="modal-content">
           <div className="modal-header">
@@ -899,7 +954,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
           <div className="modal-body">
             <div className="row g-3">
               <div className="col-md-6">
-                <label className="form-label">Host Name *</label>
+                <label className="form-label">Имя хоста *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -909,7 +964,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Purpose</label>
+                <label className="form-label">Назначение</label>
                 <select
                   className="form-select"
                   value={item.purpose || ''}
@@ -926,7 +981,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 </select>
               </div>
               <div className="col-md-6">
-                <label className="form-label">Country *</label>
+                <label className="form-label">Страна *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -936,7 +991,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Provider *</label>
+                <label className="form-label">Провайдер *</label>
                 <input
                   type="text"
                   className="form-control"
@@ -946,25 +1001,27 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Login URL</label>
+                <label className="form-label">Ссылка для входа</label>
                 <input
                   type="text"
                   className="form-control"
                   value={item.loginUrl || ''}
                   onChange={(e) => onItemChange({ ...item, loginUrl: e.target.value })}
+                  placeholder="example.com"
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Monthly Cost</label>
+                <label className="form-label">Месячная стоимость</label>
                 <input
                   type="number"
+                  step="0.01"
                   className="form-control"
                   value={item.monthlyCost || 0}
                   onChange={(e) => onItemChange({ ...item, monthlyCost: parseFloat(e.target.value) || 0 })}
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Next Payment Date</label>
+                <label className="form-label">Дата следующего платежа</label>
                 <input
                   type="date"
                   className="form-control"
@@ -973,7 +1030,7 @@ function EditBillingModal({ show, item, onItemChange, onSubmit, onClose }) {
                 />
               </div>
               <div className="col-md-6">
-                <label className="form-label">Status</label>
+                <label className="form-label">Статус</label>
                 <select
                   className="form-select"
                   value={item.status || 'active'}
@@ -1003,7 +1060,7 @@ function DeleteBillingModal({ show, item, onDelete, onClose }) {
   if (!show) return null;
 
   return (
-    <div className="modal show d-block" tabIndex="-1">
+    <div className="modal show d-block" tabIndex="-1" style={{ backgroundColor: 'rgba(0,0,0,0.5)' }}>
       <div className="modal-dialog">
         <div className="modal-content">
           <div className="modal-header">