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.

data/state.php

@@ -0,0 +1,14 @@
+<?php
+return [
+  'cacheTimestamp' => 1770433089,
+  'microtimeState' => 1770433089.766415,
+  'currencyRates' => [
+    'EUR' => 1.0
+  ],
+  'appTimestamp' => 1770309128,
+  'version' => '9.3.0',
+  'latestVersion' => '9.3.0',
+  'latestExtensionVersions' => [
+    'Advanced Pack' => '3.12.0'
+  ]
+];