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/Resources/i18n/zh_CN/DashboardTemplate.json

@@ -1 +1,11 @@
-{}
+{
+  "fields": {
+    "layout": "布局",
+    "append": "附加 (不删除用户的标签页)"
+  },
+  "labels": {
+    "Create DashboardTemplate": "创建模板",
+    "Deploy to Users": "部署到用户",
+    "Deploy to Team": "部署到团队"
+  }
+}