[commontk] cmake: Address build error by partially reverting AUTOMOC changes

Partially reverts dd82ba4 ("[commontk] cmake: Simplify build-system
leveraging AUTOMOC capability", 2025-10-23) to fix a build error
reported when AUTOMOC merges all `moc_*.cpp` into one Translation Unit
(TU) (`<target>_autogen/mocs_compilation*.cpp`).

This change includes:
- Reverting to manual specification of moc sources.
- Disabling AUTOMOC for specified sources to avoid QMetaTypeId
  specialization conflicts.

This fixes the following error:

```
In file included from /path/to/Support/Qt/6.9.1/gcc_64/include/QtCore/qvariant.h:10,
                 from /path/to/Support/Qt/6.9.1/gcc_64/include/QtCore/qmetaobject.h:10,
                 from /path/to/Support/Qt/6.9.1/gcc_64/include/QtCore/QMetaMethod:1,
                 from /path/to/Projects/PythonQt-CTK/src/PythonQtUtils.h:49,
                 from /path/to/Projects/PythonQt-CTK/src/PythonQt.h:46,
                 from /path/to/Projects/PythonQt-CTK-cmake-Qt6-Release/PythonQt_autogen/CRAGYDUSE3/../../../CTK-Qt6-build/PythonQtGenerator-output-6.9.1/generated_cpp/com_trolltech_qt_core/com_trolltech_qt_core0.h:1,
                 from /path/to/Projects/PythonQt-CTK-cmake-Qt6-Release/PythonQt_autogen/CRAGYDUSE3/moc_com_trolltech_qt_core0.cpp:9,
                 from /path/to/Projects/PythonQt-CTK-cmake-Qt6-Release/PythonQt_autogen/mocs_compilation.cpp:2:
/path/to/Support/Qt/6.9.1/gcc_64/include/QtPrintSupport/qprintengine.h:12:1: error: specialization of ‘QMetaTypeId<QMarginsF>’ after instantiation
   12 | Q_DECLARE_METATYPE(QMarginsF)
      | ^~~~~~~~~~~~~~~~~~
/path/to/Support/Qt/6.9.1/gcc_64/include/QtPrintSupport/qprintengine.h:12:1: error: redefinition of ‘struct QMetaTypeId<QMarginsF>’
/path/to/Support/Qt/6.9.1/gcc_64/include/QtCore/qmetatype.h:1232:8: note: previous definition of ‘struct QMetaTypeId<QMarginsF>’
```

Author: jcfr

CMakeLists.txt

@@ -243,6 +243,12 @@ set(headers
     extensions/PythonQt_QtAll/PythonQt_QtAll.h
 )
 
+#-----------------------------------------------------------------------------
+# Headers that should run through moc
+
+set(moc_sources
+)
+
 #-----------------------------------------------------------------------------
 # Add extra sources
 
@@ -265,13 +271,22 @@ foreach(qtlib ${qtlibs})
         list(APPEND sources ${PythonQt_GENERATED_PATH}/${file_prefix}${index}.cpp)
       endif()
 
+      # Headers that should run through moc
+      if(EXISTS ${PythonQt_GENERATED_PATH}/${file_prefix}${index}.h)
+        list(APPEND moc_sources ${PythonQt_GENERATED_PATH}/${file_prefix}${index}.h)
+      endif()
+
     endforeach()
 
     list(APPEND sources ${PythonQt_GENERATED_PATH}/${file_prefix}_init.cpp)
 
   endif()
 endforeach()
 
+#-----------------------------------------------------------------------------
+# Do wrapping
+qt_wrap_cpp(sources ${moc_sources})
+
 #-----------------------------------------------------------------------------
 # Configure header
 
@@ -300,6 +315,11 @@ set_target_properties(PythonQt
     AUTOMOC TRUE
   )
 
+# Disable AUTOMOC for specified moc sources to avoid QMetaTypeId specialization conflicts.
+foreach(moc_source IN LISTS moc_sources)
+  set_property(SOURCE ${moc_source} PROPERTY SKIP_AUTOMOC ON)
+endforeach()
+
 target_compile_definitions(PythonQt
   PRIVATE
     $<$<BOOL:${PythonQt_DEBUG}>:PYTHONQT_DEBUG>