WIP: Build fixes und EXTERNAL_DEPENDENCIES.md

qt6-after/qt6-migrated-legatus/Lts/Services/ProjectDataManagement/ModuleTests/pdm_tests.h

@@ -11,12 +11,17 @@
 #pragma once
 
 #include <ProjectDataManagement/pdm_dtc.h>
-#include <ProjectDataManagement/pdm_ftc.h>
+// pdm_ftc.h - external dependency, removed for build
 #include <ProjectDataManagement/logger.h>
 #include <DDS/DDSConnector/dds_connector.h>
 
 namespace ProjectDataManagement
 {
+namespace Interface {
+namespace Ftc {
+}
+}
+
 class PdmTests : public QObject
 {
   Q_OBJECT