Refactor farm building speed to builder unit action_speeds and enable infinite charges

terrainyieldmanager.h

@@ -29,10 +29,52 @@ struct CityConfig {
     int initialBorderRadius;
     int maxWorkableRadius;
     int defaultTileSlots;
+    float cityViewZoom;
+
+    int baseResourceYieldPerTick;
+    int tileCultureCost;
+    float foodToInhabitantsRatio;
+
+    QMap<QString, int> baseYields;
+    QMap<QString, int> initialNationalResources;
 
     CityConfig()
         : initialInhabitants(1000), inhabitantsPerPop(100000),
-          initialBorderRadius(1), maxWorkableRadius(3), defaultTileSlots(1) {}
+          initialBorderRadius(1), maxWorkableRadius(3), defaultTileSlots(1),
+          cityViewZoom(4.8f),
+          baseResourceYieldPerTick(500), tileCultureCost(10000),
+          foodToInhabitantsRatio(1.0f)
+    {
+        baseYields["voedsel"] = 500;
+        baseYields["arbeid"] = 500;
+        baseYields["kennis"] = 500;
+        baseYields["cultuur"] = 500;
+        baseYields["geloof"] = 500;
+        baseYields["goud"] = 500;
+
+        initialNationalResources["cultuur"] = 10000;
+        initialNationalResources["kennis"] = 0;
+        initialNationalResources["geloof"] = 0;
+        initialNationalResources["goud"] = 0;
+    }
+
+    int getBaseYield(const QString &res) const {
+        return baseYields.value(res, baseResourceYieldPerTick);
+    }
+};
+
+struct ImprovementConfig {
+    QString id;
+    QString name;
+    QString action;
+    QString texturePath;
+    float textureScale;
+    QString textureMapping; // "world" or "hex"
+    QStringList validTerrains;
+    QMap<QString, int> yieldBonus; // e.g. "voedsel": 1000
+
+    ImprovementConfig()
+        : id(""), name(""), action(""), texturePath("images/farm.jpeg"), textureScale(0.6f), textureMapping("world") {}
 };
 
 class TerrainYieldManager {
@@ -45,11 +87,15 @@ public:
     const TerrainYieldConfig* getYieldConfig(const QString &terrainType) const;
     const CityConfig& getCityConfig() const { return m_cityConfig; }
 
+    const ImprovementConfig* getImprovementConfig(const QString &id) const;
+    const QMap<QString, ImprovementConfig>& getAllImprovementConfigs() const { return m_improvementConfigs; }
+
 private:
     TerrainYieldManager();
     ~TerrainYieldManager() = default;
 
     QMap<QString, TerrainYieldConfig> m_yieldConfigs;
+    QMap<QString, ImprovementConfig> m_improvementConfigs;
     CityConfig m_cityConfig;
     bool m_loaded;
 };