Replace Python plugins with native C++ .so, remove bundled Python (~95MB)

- Add native plugins: form43_checker, script_extender_checker, preview_dds,
  basic_games (75 game defs via IPluginProxy pattern with Steam/GOG detection)
- Remove portable Python from Dockerfile and build-inner.sh
- Add Python settings tab with venv support (system python3 + PyQt6)
- Skip loading plugin_python.so when Python disabled (default: off)
- Update pythonrunner.cpp to use venv at ~/.local/share/fluorine/python-venv/
- Preserve real file permissions in FUSE VFS (fixes native executable +x bits)
- Add FUSE_SET_ATTR_MODE handler so chmod works through VFS
- Fix desktop shortcut Exec= to use fluorine-manager launcher, not bare binary

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/libs/basic_games_native/src/basicgamesproxy.h b/libs/basic_games_native/src/basicgamesproxy.h
new file mode 100644
index 0000000..2c2858f
--- /dev/null
+++ b/libs/basic_games_native/src/basicgamesproxy.h
@@ -0,0 +1,41 @@
+#ifndef BASICGAMESPROXY_H
+#define BASICGAMESPROXY_H
+
+#include <uibase/ipluginproxy.h>
+
+#include <QHash>
+#include <QList>
+#include <QObject>
+#include <QString>
+
+class BasicGamesProxy : public QObject, public MOBase::IPluginProxy
+{
+  Q_OBJECT
+  Q_INTERFACES(MOBase::IPlugin MOBase::IPluginProxy)
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+  Q_PLUGIN_METADATA(IID "com.tannin.ModOrganizer.PluginProxy/1.0")
+#endif
+
+public:
+  BasicGamesProxy();
+  ~BasicGamesProxy() override;
+
+  // IPlugin
+  bool init(MOBase::IOrganizer* organizer) override;
+  QString name() const override;
+  QString author() const override;
+  QString description() const override;
+  MOBase::VersionInfo version() const override;
+  QList<MOBase::PluginSetting> settings() const override;
+
+  // IPluginProxy
+  QStringList pluginList(const QDir& pluginPath) const override;
+  QList<QObject*> load(const QString& identifier) override;
+  void unload(const QString& identifier) override;
+
+private:
+  MOBase::IOrganizer* m_organizer = nullptr;
+  QHash<QString, QList<QObject*>> m_loaded;
+};
+
+#endif  // BASICGAMESPROXY_H