fix(packaging): 修复 Windows 安装与固件打包并完善客户端文案

- fix(installer): 修复低完整性产物无法写入临时目录的问题，并在 CI 打包前后检查完整性标签
- fix(firmware): 从本次 Cargo ELF 打包并同步配套镜像，修正短目录说明与 LLVM 搜索顺序
- fix(installer): 修复中文完成页和页眉遮挡，侧栏使用等比缩放的原始 Logo
- style(client): 应用图标增加圆角，统一“裁判系统客户端”命名
- fix(config): 安装提示改用可选本地热点配置，排除 Wi-Fi 凭据
- docs: 润色项目说明并统一裁判系统术语
- test(packaging): 补充 Windows 完整性和固件打包回归，覆盖外部输出目录、旧镜像与重复生成

验证：Windows NSIS 构建及原生页面预览；通用与本地安装配置编译；固件 release 构建、重复打包和客户端离线校验；6 项固件打包回归与 Windows 权限回归；git diff --check。未执行实机烧录。

desktop/src-tauri/tauri.windows.conf.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "build": {
+    "beforeBuildCommand": "powershell.exe -NoProfile -ExecutionPolicy Bypass -File scripts/prepare-windows-bundle.ps1 && pnpm build",
+    "beforeBundleCommand": "powershell.exe -NoProfile -ExecutionPolicy Bypass -File scripts/prepare-windows-bundle.ps1"
+  },
+  "bundle": {
+    "windows": {
+      "nsis": {
+        "installMode": "currentUser",
+        "languages": ["SimpChinese"],
+        "displayLanguageSelector": false,
+        "customLanguageFiles": {
+          "SimpChinese": "installer/SimpChinese.nsh"
+        },
+        "installerHooks": "installer/hooks.nsh",
+        "installerIcon": "icons/icon.ico",
+        "uninstallerIcon": "icons/icon.ico",
+        "headerImage": "installer/header.bmp",
+        "sidebarImage": "installer/sidebar.bmp",
+        "uninstallerHeaderImage": "installer/header.bmp"
+      }
+    }
+  }
+}