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/de_DE/Integration.json

@@ -4,6 +4,7 @@
     "clientId": "Client-ID",
     "clientSecret": "Client-Geheimnis",
     "redirectUri": "Weiterleitungs URI",
+    "apiKey": "API-Schlüssel",
     "siteKey": "Website-Schlüssel",
     "secretKey": "Geheimer Schlüssel",
     "scoreThreshold": "Zahl Schwellenwert",
@@ -15,7 +16,7 @@
   },
   "help": {
     "Google": "Holen Sie die OAuth 2.0 Credentials über die Google Developers Console.\n\nBesuchen Sie [die Google Developers Console](https://console.developers.google.com/project) um OAuth 2.0 Credentials wie eine Client ID und Client Geheimnis zu erhalten die sowohl Google als auch EspoCRM bekannt sind.",
-    "GoogleMaps": "API Key [hier](https://developers.google.com/maps/documentation/javascript/get-api-key) beantragen.",
+    "GoogleMaps": "API-Schlüssel [hier](https://developers.google.com/maps/documentation/javascript/get-api-key) beantragen.",
     "GoogleReCaptcha": "Beziehen Sie den Website-Schlüssel und den geheimen Schlüssel von [Google](https://www.google.com/recaptcha/)."
   }
 }