Minor: Set completion tracking (#19)

ui_wx/include/ccm/ui/YuGiOhSetCompletionPanel.hpp

@@ -0,0 +1,71 @@
+#pragma once
+
+// YuGiOhSetCompletionPanel: Set Completion tab — pack tiles with progress
+// bars for sets the user owns ≥1 card of, plus an in-tab checklist drill-down
+// (unowned rows greyed). Catalog is offline (set-catalog.json). Optional
+// language filter restricts ownership to one language and labels set titles
+// as "{setName} ({language})".
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/YuGiOhCard.hpp"
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
+#include "ccm/services/YuGiOhSetCatalogService.hpp"
+#include "ccm/ui/Theme.hpp"
+
+#include <wx/panel.h>
+
+#include <optional>
+#include <string>
+#include <vector>
+
+class wxBoxSizer;
+class wxChoice;
+class wxListCtrl;
+class wxScrolledWindow;
+class wxSimplebook;
+class wxStaticText;
+
+namespace ccm::ui {
+
+class YuGiOhSetCompletionPanel : public wxPanel {
+public:
+    YuGiOhSetCompletionPanel(wxWindow* parent, YuGiOhSetCatalogService& catalogStore);
+
+    void setCollection(std::vector<YuGiOhCard> cards);
+    void reloadFromStore();
+    void applyTheme(const ThemePalette& palette);
+
+private:
+    void showGridPage();
+    void showChecklistPage(const std::string& setId, const std::string& setName);
+    void rebuildGrid();
+    void rebuildChecklist(const std::string& setId);
+    void setEmptyMessage(const wxString& message);
+    void clearGridTiles();
+    void refreshLanguageChoice();
+    void onLanguageChoice(wxCommandEvent& event);
+    void rebuildCurrentView();
+    [[nodiscard]] std::string displaySetName(const std::string& setName) const;
+
+    YuGiOhSetCatalogService&     catalogStore_;
+    YuGiOhSetCatalog             catalog_;
+    bool                         catalogLoaded_{false};
+    std::vector<YuGiOhCard>      collection_;
+    ThemePalette                 palette_{};
+    std::optional<Language>      languageFilter_;
+
+    wxChoice*          languageChoice_{nullptr};
+    wxSimplebook*      book_{nullptr};
+    wxPanel*           gridPage_{nullptr};
+    wxScrolledWindow*  scroll_{nullptr};
+    wxBoxSizer*        gridSizer_{nullptr};
+    wxStaticText*      emptyLabel_{nullptr};
+
+    wxPanel*           detailPage_{nullptr};
+    wxStaticText*      detailTitle_{nullptr};
+    wxListCtrl*        checklist_{nullptr};
+    std::string        detailSetId_;
+    std::string        detailSetName_;
+};
+
+}  // namespace ccm::ui