The scripted Q_DECLARE_OPAQUE_POINTER sweep missed the QtCore/qmetatype.h
include (cascade of stdlib errors) and declared a few types in two headers
(redefinition of IsPointerDeclaredOpaque). Include qmetatype.h everywhere
and declare each handle in exactly one header.
- Linux GCC rejects QMetaType instantiation over incomplete types
(static_assert(sizeof(T))); Q_DECLARE_OPAQUE_POINTER every opaque
OakEngine* handle in the public headers so QList<OakEngineTask*> etc
compile
- Windows: gtest discovery ran the fresh exe before the DLLs were next
to it; use DISCOVERY_MODE PRE_TEST on WIN32 and copy the DLLs for
ctest time
The full pure-C facade used by the app: node/project/timeline/viewer/
undo/task/events/serializer/playback/preview/renderer/gizmo/color/
audio/footage/proxy/encoding/exporter/config/disk/ipc/plugin/worker
families, plus undo-group semantics, display renderer handles,
NodeFactory accessors, and per-family pure-C engine tests.