Replace private/public macro hacks in waylib with explicit member accessors

[Copilot]

This change removes the #define private public / #define protected public pattern used in waylib/src/server, which can silently alter unrelated declarations and make Qt private-header usage brittle. The refactor keeps the existing access points but moves them to a scoped, explicit mechanism.

• Accessor mechanism

  • Add waylib/src/server/utils/memberaccessor_p.h
  • Implement a small explicit-instantiation-based accessor utility for private members/functions, following the same class of approach as cpp-member-accessor
  • Replace broad preprocessor visibility rewriting with per-member accessor declarations at each call site

• Qt/QtQuick private access cleanup

  • Migrate private-member access in:
    • kernel/wcursor.cpp
    • kernel/wserver.cpp
    • qtquick/wqmlcreator.cpp
    • qtquick/woutputrenderwindow.cpp
    • qtquick/private/wqmlhelper.cpp
    • qtquick/private/wbufferrenderer.cpp
    • qtquick/private/wrenderbuffernode.cpp
  • Remove the corresponding private/protected -> public macro blocks from these files and related headers

• QPA screen handling

  • Replace direct QScreen private-constructor access in platformplugin/qwlrootsintegration.cpp
  • For non-master mode, create the QScreen wrapper through QWindowSystemInterface::handleScreenAdded() and then detach it from QGuiApplication::screens() to preserve the previous behavior without using the private constructor directly

• Surface area reduction

  • Drop now-unneeded macro-based include hacks from qwlrootsintegration.h, wqmlhelper_p.h, and wbufferrenderer_p.h
  • Keep the refactor local to the existing private access points rather than widening the abstraction boundary

Example of the new pattern:

WAYLIB_DECLARE_PRIVATE_ACCESSOR(QCursorDataShapeAccessor,
                                Qt::CursorShape QCursorData::*,
                                &QCursorData::cshape);

auto *cursorData = Waylib::PrivateAccessor::member<QCursorDataPointerAccessor>(cursor);
Waylib::PrivateAccessor::member<QCursorDataShapeAccessor>(*cursorData) =
    static_cast<Qt::CursorShape>(shape);

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[deepin-ci-robot]

Hi @Copilot. Thanks for your PR.

I'm waiting for a linuxdeepin member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[deepin-bot]

TAG Bot

New tag: 0.8.7
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #886

[zccrs]

已解决，这个pr不需要了