game_list: discover loose dumps without walking their RomFS payloads

Defer RomFS construction, reuse one discovery result, omit recursive folder sizing, and release rows discarded by cancellation. Add scan suspension and regression coverage for extracted layouts and Unicode paths.

Assisted-by: Codex (implementation, selective integration and automated validation)

2 files changed, 5 insertions, 0 deletions

diff --git a/src/yuzu/game/game_list.cpp b/src/yuzu/game/game_list.cpp
index cd7fc19de4..17183c02ec 100644
--- a/src/yuzu/game/game_list.cpp
+++ b/src/yuzu/game/game_list.cpp
@@ -155,6 +155,10 @@ void GameList::PopulateAsync(QVector<UISettings::GameDir>& game_dirs) {
     item_model->PopulateAsync(game_dirs);
 }
 
+void GameList::SetScanEnabled(bool enabled) {
+    item_model->SetScanEnabled(enabled);
+}
+
 void GameList::SaveInterfaceLayout() {
     tree_view->SaveInterfaceLayout();
 }
diff --git a/src/yuzu/game/game_list.h b/src/yuzu/game/game_list.h
index 1540dd9cf0..161e66195f 100644
--- a/src/yuzu/game/game_list.h
+++ b/src/yuzu/game/game_list.h
@@ -76,6 +76,7 @@ public:
     bool IsEmpty() const;
 
     void PopulateAsync(QVector<UISettings::GameDir>& game_dirs);
+    void SetScanEnabled(bool enabled);
 
     void SaveInterfaceLayout();
     void LoadInterfaceLayout();