chore(release): 1.0.0~beta2

- 会话列表拖拽排序/多选/批量删除
- 128k/1024k token 上下文上限
- 待办取消置顶；全屏隐藏联动
- 英文回退翻译补齐；新应用图标
- DTK 关于窗口、分词/朗读对话框、消息常驻操作

src/todo/todowindow.h

@@ -28,11 +28,15 @@ public:
     void refreshLayout();
 
 protected:
+    void contextMenuEvent(QContextMenuEvent *event) override;
     void showEvent(QShowEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
 
+signals:
+    void recreateRequested();
+
 private:
     void setupWindow();
     void setupUi();
@@ -45,6 +49,7 @@ private:
     QLabel *m_countLabel = nullptr;
     int m_rightMargin = 16;
     int m_topMargin = 72;
+    bool m_keepAbove = true;
     bool m_dragging = false;
     QPoint m_dragStart;
     int m_dragStartRight = 0;