derive threat cost dynamically

src/ui/ShipStatsPanel.h

@@ -26,10 +26,14 @@ public:
 
     void refreshFromLive(const ShipStats& stats, float currentHp);
 
+    void setThreatCost(double cost);
+    void setDebugDrawEnabled(bool enabled);
+
 private:
     void applyStats(const ShipStats& stats, const QString& hpText);
 
     const GameConfig* m_config;
+    bool m_debugDraw = false;
 
     QLabel* m_hpLabel;
     QLabel* m_speedLabel;
@@ -50,4 +54,6 @@ private:
     QWidget* m_repairSection;
     QLabel*  m_repairRateLabel;
     QLabel*  m_repairRangeLabel;
+
+    QLabel* m_threatCostLabel;
 };