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/EmailTemplate.json

@@ -1,26 +1,34 @@
-{
-  "fields": {
-    "name": "名称",
-    "status": "状态",
-    "isHtml": "是HTML",
-    "body": "正文",
-    "subject": "主题",
-    "attachments": "附件",
-    "oneOff": "一次性",
-    "category": "分类"
-  },
-  "labels": {
-    "Create EmailTemplate": "创建邮件模板",
-    "Info": "信息",
-    "Available placeholders": "可用变量"
-  },
-  "tooltips": {
-    "oneOff": "如果此模板你仅用一次则选中此项。例如，批量邮件。"
-  },
-  "presetFilters": {
-    "actual": "所有"
-  },
-  "placeholderTexts": {
-    "optOutLink": "取消订阅链接"
-  }
+{
+  "fields": {
+    "name": "名称",
+    "status": "状态",
+    "body": "正文",
+    "subject": "主题",
+    "attachments": "附件",
+    "oneOff": "一次性",
+    "category": "分类"
+  },
+  "labels": {
+    "Create EmailTemplate": "创建邮件模板",
+    "Info": "信息",
+    "Available placeholders": "可用变量"
+  },
+  "tooltips": {
+    "oneOff": "如果此模板你仅用一次则选中此项。例如，批量邮件。"
+  },
+  "placeholderTexts": {
+    "optOutLink": "取消订阅链接",
+    "today": "今天的日期",
+    "now": "当前日期 & 时间",
+    "currentYear": "今年"
+  },
+  "options": {
+    "status": {
+      "Active": "启用",
+      "Inactive": "未启用"
+    }
+  },
+  "presetFilters": {
+    "actual": "启用"
+  }
 }