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, 73 insertions, 0 deletions

diff --git a/libs/basic_games_native/src/basicgameplugin.h b/libs/basic_games_native/src/basicgameplugin.h
new file mode 100644
index 0000000..17f4ec9
--- /dev/null
+++ b/libs/basic_games_native/src/basicgameplugin.h
@@ -0,0 +1,73 @@
+#ifndef BASICGAMEPLUGIN_H
+#define BASICGAMEPLUGIN_H
+
+#include "gamedefs.h"
+
+#include <uibase/iplugingame.h>
+#include <uibase/imoinfo.h>
+
+#include <QDir>
+#include <QIcon>
+#include <QString>
+
+class BasicGamePlugin : public MOBase::IPluginGame
+{
+  Q_OBJECT
+  Q_INTERFACES(MOBase::IPlugin MOBase::IPluginGame)
+
+public:
+  explicit BasicGamePlugin(const GameDefinition& def);
+
+  // IPlugin
+  bool init(MOBase::IOrganizer* organizer) override;
+  QString name() const override;
+  QString localizedName() const override;
+  QString author() const override;
+  QString description() const override;
+  MOBase::VersionInfo version() const override;
+  QList<MOBase::PluginSetting> settings() const override;
+
+  // IPluginGame
+  QString gameName() const override;
+  void detectGame() override;
+  void initializeProfile(const QDir& directory,
+                         ProfileSettings settings) const override;
+  std::vector<std::shared_ptr<const MOBase::ISaveGame>>
+  listSaves(QDir folder) const override;
+  bool isInstalled() const override;
+  QIcon gameIcon() const override;
+  QDir gameDirectory() const override;
+  QDir dataDirectory() const override;
+  void setGamePath(const QString& path) override;
+  QDir documentsDirectory() const override;
+  QDir savesDirectory() const override;
+  QList<MOBase::ExecutableInfo> executables() const override;
+  QList<MOBase::ExecutableForcedLoadSetting> executableForcedLoads() const override;
+  QString steamAPPId() const override;
+  QStringList primaryPlugins() const override;
+  QStringList gameVariants() const override;
+  void setGameVariant(const QString& variant) override;
+  QString binaryName() const override;
+  QString gameShortName() const override;
+  QStringList validShortNames() const override;
+  QString gameNexusName() const override;
+  QStringList iniFiles() const override;
+  QStringList DLCPlugins() const override;
+  LoadOrderMechanism loadOrderMechanism() const override;
+  SortMechanism sortMechanism() const override;
+  int nexusGameID() const override;
+  bool looksValid(QDir const& dir) const override;
+  QString gameVersion() const override;
+  QString getLauncherName() const override;
+  QString getSupportURL() const override;
+
+private:
+  QString resolveVariables(const QString& input) const;
+
+  GameDefinition m_def;
+  MOBase::IOrganizer* m_organizer = nullptr;
+  QString m_gameDir;
+  bool m_installed = false;
+};
+
+#endif  // BASICGAMEPLUGIN_H