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/Field/DateTimeOptional.php

@@ -3,7 +3,7 @@
  * This file is part of EspoCRM.
  *
  * EspoCRM – Open Source CRM application.
- * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
  * Website: https://www.espocrm.com
  *
  * This program is free software: you can redistribute it and/or modify
@@ -35,7 +35,7 @@ use DateTimeImmutable;
 use DateTimeInterface;
 use DateInterval;
 use DateTimeZone;
-use RuntimeException;
+use InvalidArgumentException;
 
 /**
  * A date-time or date. Immutable.
@@ -45,9 +45,12 @@ class DateTimeOptional implements DateTimeable
     private ?DateTime $dateTimeValue = null;
     private ?Date $dateValue = null;
 
-    private const SYSTEM_FORMAT = 'Y-m-d H:i:s';
-    private const SYSTEM_FORMAT_DATE = 'Y-m-d';
+    private const string SYSTEM_FORMAT = 'Y-m-d H:i:s';
+    private const string SYSTEM_FORMAT_DATE = 'Y-m-d';
 
+    /**
+     * @throws InvalidArgumentException
+     */
     public function __construct(string $value)
     {
         if (self::isStringDateTime($value)) {
@@ -59,6 +62,8 @@ class DateTimeOptional implements DateTimeable
 
     /**
      * Create from a string with a date-time in `Y-m-d H:i:s` format or date in `Y-m-d`.
+     *
+     * @throws InvalidArgumentException
      */
     public static function fromString(string $value): self
     {
@@ -67,12 +72,14 @@ class DateTimeOptional implements DateTimeable
 
     /**
      * Create from a string with a date-time in `Y-m-d H:i:s` format.
+     *
+     * @throws InvalidArgumentException
      * @noinspection PhpUnused
      */
     public static function fromDateTimeString(string $value): self
     {
         if (!self::isStringDateTime($value)) {
-            throw new RuntimeException("Bad value.");
+            throw new InvalidArgumentException("Bad value.");
         }
 
         return self::fromString($value);
@@ -434,12 +441,14 @@ class DateTimeOptional implements DateTimeable
 
     /**
      * Create from a string with a date in `Y-m-d` format.
+     *
+     * @throws InvalidArgumentException
      * @noinspection PhpUnused
      */
     public static function fromDateString(string $value): self
     {
         if (self::isStringDateTime($value)) {
-            throw new RuntimeException("Bad value.");
+            throw new InvalidArgumentException("Bad value.");
         }
 
         return self::fromString($value);