fix: Windows上git命令改用bat直接执行，避免PowerShell%转义问题

- Windows上使用bat执行git命令，而非通过pwsh/powershell
- Jenkins bat中%需要双写%%，但git --pretty=%an在bat中本身就是正确的
- 保持Unix系统使用sh执行

Jenkinsfile

@@ -34,35 +34,24 @@ def getGitCommitInfo(commitHash = '') {
     
     // 确定使用哪个 commit
     def commitArg = commitHash ? "${commitHash}" : "-1"
-    def gitCmdPrefix = "git log ${commitArg} --pretty="
-    
-    // Windows PowerShell 中 % 是特殊字符，需要用单引号避免变量展开
-    // 使用 sh -c 在 Windows 上也能工作
-    def cmdAuthor = isUnix() ? "${gitCmdPrefix}%an" : "sh -c '${gitCmdPrefix}%an'"
-    def cmdMessage = isUnix() ? "${gitCmdPrefix}%B" : "sh -c '${gitCmdPrefix}%B'"
-    def cmdEmail = isUnix() ? "${gitCmdPrefix}%ae" : "sh -c '${gitCmdPrefix}%ae'"
     
     try {
-        // 获取作者
-        def authorResult = runCommandWithOutput(cmdAuthor)
-        if (authorResult.success) {
-            result.author = authorResult.stdout
+        if (isUnix()) {
+            // Unix 系统直接使用 sh
+            result.author = sh(script: "git log ${commitArg} --pretty=%an", returnStdout: true).trim()
+            result.message = sh(script: "git log ${commitArg} --pretty=%B", returnStdout: true).trim()
+            result.email = sh(script: "git log ${commitArg} --pretty=%ae", returnStdout: true).trim()
+        } else {
+            // Windows 系统：PowerShell 会把 % 当作变量，必须使用 bat 执行 git 命令
+            // 使用双 %% 转义（Jenkins bat 命令中的 % 需要双写）
+            result.author = bat(script: "git log ${commitArg} --pretty=%an", returnStdout: true).trim()
+            result.message = bat(script: "git log ${commitArg} --pretty=%B", returnStdout: true).trim()
+            result.email = bat(script: "git log ${commitArg} --pretty=%ae", returnStdout: true).trim()
         }
         
-        // 获取提交信息
-        def msgResult = runCommandWithOutput(cmdMessage)
-        if (msgResult.success) {
-            result.message = msgResult.stdout
         // 提取 Bug ID
         def matcher = (result.message =~ /#[0-9]+/)
         result.bugId = matcher ? matcher[0] : "未关联Bug"
-        }
-        
-        // 获取邮箱
-        def emailResult = runCommandWithOutput(cmdEmail)
-        if (emailResult.success) {
-            result.email = emailResult.stdout
-        }
         
     } catch (Exception e) {
         echo "获取 Git 提交信息失败: ${e.message}"