BREAKING CHANGE(core): Rebrand XInvoice to EInvoice: update package name, class names, imports, and documentation

package.json

@@ -1,8 +1,8 @@
 {
-  "name": "@fin.cx/xinvoice",
+  "name": "@fin.cx/einvoice",
   "version": "4.3.0",
   "private": false,
-  "description": "A TypeScript module for creating, manipulating, and embedding XML data within PDF files specifically tailored for xinvoice packages.",
+  "description": "A TypeScript module for creating, manipulating, and embedding XML data within PDF files specifically tailored for electronic invoice (einvoice) packages.",
   "main": "dist_ts/index.js",
   "typings": "dist_ts/index.d.ts",
   "type": "module",
@@ -33,12 +33,12 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://gitea.nevermind.cloud/fin.cx/xinvoice.git"
+    "url": "git+https://gitea.nevermind.cloud/fin.cx/einvoice.git"
   },
   "bugs": {
-    "url": "https://gitea.nevermind.cloud/fin.cx/xinvoice/issues"
+    "url": "https://gitea.nevermind.cloud/fin.cx/einvoice/issues"
   },
-  "homepage": "https://gitea.nevermind.cloud/fin.cx/xinvoice#readme",
+  "homepage": "https://gitea.nevermind.cloud/fin.cx/einvoice#readme",
   "browserslist": [
     "last 1 chrome versions"
   ],
@@ -55,7 +55,7 @@
     "readme.md"
   ],
   "keywords": [
-    "xinvoice",
+    "einvoice",
     "XML embedding",
     "PDF manipulation",
     "invoice processing",