chore: Update copyright year from 2025 to 2026 across core files

- Updated copyright headers in 3,055 core application files
- Changed 'Copyright (C) 2014-2025' to 'Copyright (C) 2014-2026'
- Added 123 new files from EspoCRM core updates
- Removed 4 deprecated files
- Total changes: 61,637 insertions, 54,283 deletions

This is a routine maintenance update for the new year 2026.

application/Espo/Core/Currency/InternalRatesProvider.php

@@ -0,0 +1,132 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\Currency;
+
+use Espo\Core\Field\Date;
+use Espo\Core\Utils\Config\SystemConfig;
+use Espo\Core\Utils\DataCache;
+use Espo\Core\Utils\DateTime;
+use LogicException;
+use stdClass;
+
+/**
+ * @internal
+ */
+class InternalRatesProvider
+{
+    private string $cacheKey = 'currencyRates';
+
+    /** @var (stdClass&object{date: string, rates: stdClass})|null */
+    private ?stdClass $data = null;
+
+    public function __construct(
+        private DataCache $dataCache,
+        private SystemConfig $systemConfig,
+        private DateTime $dateTime,
+        private InternalRateEntryProvider $rateEntryProvider,
+    ) {}
+
+    /**
+     * @return array<string, float>
+     */
+    public function get(string $base): array
+    {
+        $this->data ??= $this->getCachedData();
+
+        $today = $this->dateTime->getToday();
+
+        if (!$this->data || $this->data->date !== $today->toString()) {
+            $this->data = $this->buildData($today, $base);
+
+            $this->storeData();
+        }
+
+        if ($this->data === null) {
+            throw new LogicException();
+        }
+
+        return get_object_vars($this->data->rates);
+    }
+
+    /**
+     * @return (stdClass&object{date: string, rates: stdClass})|null
+     */
+    private function getCachedData(): ?stdClass
+    {
+        if (!$this->systemConfig->useCache()) {
+            return null;
+        }
+
+        $cached = $this->dataCache->tryGet($this->cacheKey);
+
+        if (!$cached instanceof stdClass) {
+            return null;
+        }
+
+        if (!isset($cached->date) || !isset($cached->rates)) {
+            $this->dataCache->clear($this->cacheKey);
+
+            return null;
+        }
+
+        /** @var stdClass&object{date: string, rates: stdClass} */
+        return $cached;
+    }
+
+    private function storeData(): void
+    {
+        if (!$this->systemConfig->useCache()) {
+            return;
+        }
+
+        if (!$this->data instanceof stdClass) {
+            throw new LogicException();
+        }
+
+        $this->dataCache->store($this->cacheKey, $this->data);
+    }
+
+    /**
+     * @return stdClass&object{date: string, rates: stdClass}
+     */
+    private function buildData(Date $today, string $base): stdClass
+    {
+        $rates = [];
+
+        foreach ($this->rateEntryProvider->getRateEntries($today, $base) as $rate) {
+            $rates[$rate->getRecord()->getCode()] = (float) $rate->getRate();
+        }
+
+        return (object) [
+            'date' => $today->toString(),
+            'rates' => (object) $rates,
+        ];
+    }
+}