console and mining tab visual improvements

src/config/settings.h

@@ -202,6 +202,10 @@ public:
     bool getPoolMode() const { return pool_mode_; }
     void setPoolMode(bool v) { pool_mode_ = v; }
 
+    // Font scale (user accessibility setting, 1.0–1.5)
+    float getFontScale() const { return font_scale_; }
+    void setFontScale(float v) { font_scale_ = std::max(1.0f, std::min(1.5f, v)); }
+
     // Window size persistence (logical pixels at 1x scale)
     int getWindowWidth()  const { return window_width_; }
     int getWindowHeight() const { return window_height_; }
@@ -254,6 +258,9 @@ private:
     bool        pool_hugepages_ = true;
     bool        pool_mode_      = false;   // false=solo, true=pool
 
+    // Font scale (user accessibility, 1.0–3.0; 1.0 = default)
+    float       font_scale_     = 1.0f;
+
     // Window size (logical pixels at 1x scale; 0 = use default 1200×775)
     int         window_width_   = 0;
     int         window_height_  = 0;