【BUG】BUG After downloading latest version, web UI shows “存在本地修改，或当前版本由修改后的源码构建，请通过 Git 手动更新”

English Version
Environment:

• PilotDeck version: v2026.09.09 (commit: d9ed2cd)
• Installation method: install.sh one-line install
• OS: macOS (darwin-arm64)
• Node.js version: v26.7.0
• Git status: Untracked bin/pilotdeck file in working directory
  Bug Description:
  After installing the latest version via the one-line install script, when clicking "Check for Updates" in the Web UI Settings → About page, it displays an error message:
  Local changes exist, or this build includes modified source. Update manually with Git.
  In reality, no source code has been modified. The issue is caused by the bin/pilotdeck file generated by the install script, which marks the Git working directory as "dirty".
  Root Cause Analysis:
  The inspectWorkspace() function in ui/server/services/webUpdateService.js:75 executes:
  if (await git(['status', '--porcelain', '--untracked-files=all'])) throw updateError('localChanges');
  This check treats any untracked files (such as bin/pilotdeck generated by the install script) as "local changes", preventing Web UI auto-updates.
  Steps to Reproduce:

1. Install via curl -fsSL https://raw.githubusercontent.com/OpenBMB/PilotDeck/main/install.sh | bash
2. Start the PilotDeck server
3. Open the Web UI, navigate to Settings → About
4. Click "Check for Updates" or "Update" button
   Expected Behavior:
   For a fresh installation of the latest version, it should display "Up to date" or allow Web UI updates.
   Actual Behavior:
   Displays error message "Local changes exist" and cannot update via Web UI, only manual Git updates are possible.
   Suggested Fix:
5. Exclude known install script generated files (like the bin/ directory) in inspectWorkspace()
6. Or add bin/ to .gitignore in the install script

中文版
环境信息：

• PilotDeck 版本：v2026.09.09 (commit: d9ed2cd)
• 安装方式：install.sh 一键安装
• 操作系统：macOS (darwin-arm64)
• Node.js 版本：v26.7.0
• Git 状态：工作目录存在 bin/pilotdeck 未跟踪文件
  Bug 描述：
  通过一键安装脚本安装最新版本后，在 Web UI 的「设置 → 关于」页面点击「检查更新」时，显示错误信息：
  存在本地修改，或当前版本由修改后的源码构建，请通过 Git 手动更新。
  实际上并没有修改过源代码，只是安装脚本生成的 bin/pilotdeck 文件导致 Git 工作目录被标记为"脏"状态。
  根因分析：
  ui/server/services/webUpdateService.js:75 中的 inspectWorkspace() 函数会执行：
  if (await git(['status', '--porcelain', '--untracked-files=all'])) throw updateError('localChanges');
  该检查会将任何未跟踪文件（如安装脚本生成的 bin/pilotdeck）也视为"本地修改"，导致无法通过 Web UI 进行自动更新。
  复现步骤：

1. 通过 curl -fsSL https://raw.githubusercontent.com/OpenBMB/PilotDeck/main/install.sh | bash 安装
2. 启动 PilotDeck 服务
3. 打开 Web UI，进入「设置 → 关于」
4. 点击「检查更新」或「更新」按钮
   预期行为：
   对于全新安装的最新版本，应显示"已是最新版本"或允许通过 Web UI 更新。
   实际行为：
   显示错误信息"存在本地修改"，无法通过 Web UI 更新，只能通过 Git 手动更新。
   建议修复：
5. 在 inspectWorkspace() 中排除已知的安装脚本生成文件（如 bin/ 目录）
6. 或者在安装脚本中将 bin/ 目录添加到 .gitignore

Start with inspectWorkspace() at ui/server/services/webUpdateService.js:75 and review how install.sh creates bin/pilotdeck. Reproduce the dirty-worktree check after a one-line install, then adjust the handling of that generated file or directory so a clean installation can update through the Web UI; verify that the About-page update check reports the expected state.