feat: Vergilius-style C++ generator, struct type click fix, item view highlight fix

Rewrite C++ generator for Vergilius-style output: inline anonymous
structs/unions, reference opaque types by name with struct keyword
prefix, size comments, aligned offset comments, no anon_ stubs.

Fix struct type name not clickable in editor headers (headerTypeNameSpan
assumed "struct TYPENAME" format but named structs use bare name).

Add static_assert toggle in Options > Generator, default off.

Fix item view highlight bleed: patch PE_PanelItemViewRow to use
theme.hover so row background matches CE_ItemViewItem.

src/optionsdialog.h

@@ -18,6 +18,7 @@ struct OptionsResult {
     bool    safeMode = false;
     bool    autoStartMcp = true;
     int     refreshMs = 660;
+    bool    generatorAsserts = false;
 };
 
 class OptionsDialog : public QDialog {
@@ -41,6 +42,7 @@ private:
     QCheckBox*      m_safeModeCheck  = nullptr;
     QCheckBox*      m_autoMcpCheck   = nullptr;
     QSpinBox*       m_refreshSpin    = nullptr;
+    QCheckBox*      m_assertCheck    = nullptr;
 
     // searchable keywords per leaf tree item
     QHash<QTreeWidgetItem*, QStringList> m_pageKeywords;