fix(brand): 作者改为 U-Claw，去掉个人名字

u-claw-app/package.json

@@ -3,7 +3,7 @@
   "version": "2.0.0",
   "description": "U-Claw - AI 助手桌面版，插上 U 盘就能用",
   "main": "src/main.js",
-  "author": "贺方升 <hefangsheng@gmail.com> (https://u-claw.org)",
+  "author": "U-Claw <hello@u-claw.org> (https://u-claw.org)",
   "license": "MIT",
   "homepage": "https://u-claw.org",
   "scripts": {
@@ -19,7 +19,7 @@
   "build": {
     "appId": "org.u-claw.desktop",
     "productName": "U-Claw",
-    "copyright": "Copyright © 2026 贺方升 (u-claw.org)",
+    "copyright": "Copyright © 2026 U-Claw",
     "directories": {
       "output": "release"
     },