feat: pass launch_type when launching apps from launcher

启动器启动应用时传入 launch_type 参数，用于应用启动埋点统计。
launch_type=1 表示从启动器点击启动。

Pass launch_type parameter when launching applications from
launcher for application launch event reporting. launch_type=1
indicates the app was launched from the launcher.

PMS: TASK-388657

Author: Ivy233

src/ddeintegration/appmgr.cpp

@@ -184,7 +184,7 @@ bool AppMgr::launchApp(const QString &desktopId)
     const auto path = amAppIface->path();
     QProcess process;
     process.setProcessChannelMode(QProcess::MergedChannels);
-    process.start("dde-am", {"--by-user", path});
+    process.start("dde-am", {"--by-user", "--launch-type", "dde-launchpad", path});
     if (!process.waitForFinished()) {
         qCWarning(logDdeIntegration) << "Failed to launch the desktopId:" << desktopId << process.errorString();
         return false;