console and mining tab visual improvements

src/ui/windows/console_tab.h

@@ -113,6 +113,7 @@ private:
     char input_buffer_[4096] = {0};
     bool auto_scroll_ = true;
     bool scroll_to_bottom_ = false;
+    float scroll_up_cooldown_ = 0.0f;    // seconds to wait before re-enabling auto-scroll
     int  new_lines_since_scroll_ = 0;     // new lines while scrolled up (for indicator)
     size_t last_daemon_output_size_ = 0;
     size_t last_xmrig_output_size_ = 0;
@@ -140,6 +141,17 @@ private:
     mutable float total_wrapped_height_ = 0.0f;       // Total height of all visible lines
     mutable float cached_wrap_width_ = 0.0f;          // Wrap width used for cached heights
     
+    // Sub-row layout: each visible line is split into wrap segments so
+    // selection and hit-testing know the exact screen position of every
+    // character.
+    struct WrapSegment {
+        int   byteStart;   // byte offset into ConsoleLine::text
+        int   byteEnd;     // byte offset past last char in this segment
+        float yOffset;     // Y offset of this segment relative to the line's top
+        float height;      // visual height of this segment
+    };
+    mutable std::vector<std::vector<WrapSegment>> visible_wrap_segments_; // [vi] -> segments
+    
     // Commands popup
     bool show_commands_popup_ = false;
 };