Refactor: Use QTemporaryDir for temporary log export

Replaced the manual creation and deletion of the temporary directory
for operational logs with QTemporaryDir. QTemporaryDir provides a more
robust and safer mechanism for handling temporary files and directories.

Task: https://pms.uniontech.com/task-view-381443.html

Author: wangrong1069

application/configs/coredump-reporter.service

@@ -12,4 +12,3 @@ InaccessiblePaths=-/etc/pam.d
 InaccessiblePaths=-/usr/share/uadp
 InaccessiblePaths=-/etc/sudoers
 InaccessiblePaths=-/etc/sudoers.d
-MemoryMax=8G

application/logallexportthread.cpp

@@ -471,9 +471,10 @@ void LogAllExportThread::run()
     if (!m_cancel.load()) {
         // Create temporary directory for ops logs
         QString userHomePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
-        QString opsLogPath = QDir::tempPath() + "/deepin-log-viewer-ops-logs-" + QString::number(QDateTime::currentMSecsSinceEpoch());
+        QTemporaryDir tempDir(QDir::tempPath() + "/XXXXXX");
 
-        if (QDir().mkpath(opsLogPath)) {
+        if (tempDir.isValid()) {
+            QString opsLogPath = tempDir.path();
             DLDBusHandler::instance(this)->exportOpsLog(opsLogPath, userHomePath);
             completedTasks += 5;
             emit updatecurrentProcess(completedTasks);
@@ -538,15 +539,14 @@ void LogAllExportThread::run()
             }
             completedTasks += 2;
             emit updatecurrentProcess(completedTasks);
-            // Clean up temporary directory
-            if (!Utils::deleteDir(opsLogPath)) {
-                qCWarning(logApp) << "Failed to remove temporary ops log directory:" << opsLogPath;
-            }
-            completedTasks += 1;
-            emit updatecurrentProcess(completedTasks);
         } else {
-            qCCritical(logApp) << "Failed to create temporary ops log directory:" << opsLogPath;
+            qCCritical(logApp) << "Failed to create temporary ops log directory";
+            completedTasks += 9;
+            emit updatecurrentProcess(completedTasks);
         }
+
+        completedTasks += 1;
+        emit updatecurrentProcess(completedTasks);
     }
 
     zipClose(m_zipFile, "Exported by Deepin Log Viewer");

logViewerService/assets/data/deepin-log-viewer-daemon.service

@@ -9,7 +9,6 @@ BusName=com.deepin.logviewer
 ExecStart=/usr/lib/deepin-daemon/log-view-service
 # cap能力不能填为空，否则日志收集工具启动卡，并且不能查看/var/log下日志，建议cap能力不能为dbus必查项
 #CapabilityBoundingSet=~CAP_NET_RAW
-MemoryMax=8G
 # 非root有阻塞，deepin-daemon启动后不能通过/proc/pid/exe获取启动进程全路径，下一阶段再按deepin-dameon启动
 #User=deepin-daemon
 ProtectSystem=strict