chore(release): v1.1.0 — 版本号 1.0.0 → 1.1.0，README 双语化，构建脚本编码自检

版本号 1.1.0（Windows 支持是新功能）
- core/protocol.py APP_VERSION、installer/version_info.txt、installer/iosloc.iss
  MyAppVersion、Location.spec（mac BUNDLE）、tools/make_dmg.py VERSION 全部同步到 1.1.0
- 产物命名规范：Windows 用 _win、macOS 用 _mac 后缀，Release 页面一眼分清平台
  · iOSLocationTrack-1.1.0_win-setup.exe
  · iOSLocationTrack-1.1.0_win-portable.zip
  · iOSLocationTrack-1.1.0_mac.dmg

README 双语化（默认中文）
- docs/README-WINDOWS.en.md 新增（Windows 文档全文英文版）
- docs/README-WINDOWS.md 顶部加 [中文] | [English] 语言切换
- README.md / README.en.md 的下载章节改成平台表格，说明 _win / _mac 命名

构建脚本编码自检
- scripts/build.ps1 新增第 0.5 步：检查 scripts/*.ps1 是否为 UTF-8 with BOM，
  缺失则自动补回。Windows PowerShell 5.1 没有 BOM 时会按 ANSI(GBK) 解析，
  中文乱码且直接语法报错（改个注释就构建不了，本项目实际踩过两次）
- 本次修复：build.ps1 的 BOM 在编辑后被工具静默丢弃，已补回

验收（Windows 11 x64 / iPhone 11 iOS 26.6.1）
- selftest 83/83、drift_sim 40/40、offline_tiles 13/13
- 打包版 exe 清单含 requireAdministrator，FileVersion 1.1.0.0

README.en.md

@@ -13,7 +13,7 @@ The UI is a local web app opened in a Chrome / Edge app window (no address bar
 > userspace stack — no Wintun driver needed), detects and auto-installs Apple Mobile Device
 > Support on first launch, and shows an environment self-check window.
 > Build outputs: `dist\iOSLocationTrack\iOSLocationTrack.exe` and
-> `dist\installer\iOSLocationTrack-1.0.0-setup.exe`.
+> `dist\installer\iOSLocationTrack-1.1.0_win-setup.exe`.
 
 ---
 
@@ -21,10 +21,19 @@ The UI is a local web app opened in a Chrome / Edge app window (no address bar
 
 ### Option A — Download the installer (recommended)
 
-Grab `iOSLocationTrack-1.0.0.dmg` from [Releases](https://github.com/jbjf6666/ios-location-track/releases):
+Grab the build for your platform from [Releases](https://github.com/jbjf6666/ios-location-track/releases):
 
-1. Open the DMG and drag `虚拟定位轨迹.app` into `Applications`
-2. If macOS says *"unidentified developer"* on first launch → **right-click → Open → Open**
+| Platform | Filename | Notes |
+| --- | --- | --- |
+| **Windows** | `iOSLocationTrack-<version>_win-setup.exe` | Installer. A portable ZIP is also provided — just unzip and run |
+| **macOS** | `iOSLocationTrack-<version>_mac.dmg` | Open the DMG and drag the app into `Applications` |
+
+On Windows the first launch asks for administrator rights and shows an environment
+self-check window that installs anything missing — see
+[docs/README-WINDOWS.md](docs/README-WINDOWS.md).
+
+macOS: open the DMG and drag `虚拟定位轨迹.app` into `Applications`. If macOS says
+*"unidentified developer"* on first launch → **right-click → Open → Open**.
 
 **No Python, no dependencies** — the Python runtime and every dependency are bundled inside the app (~80 MB).
 Config and tile cache are written to `~/Library/Application Support/iOSLocationTrack/`.