feat(cms): 添加虚拟阅读量展示与实际阅读量原子递增功能

- 在CmsArticle实体中新增views字段，表示实际阅读量与虚拟阅读量之和，供展示使用
- 实现views字段的getter方法，动态计算实际阅读量和虚拟阅读量的总和
- 修改CmsArticleServiceImpl中阅读量更新逻辑，采用SQL原子递增实际阅读量，防止并发覆盖
- 更新内存中article的实际阅读量值，保持与数据库同步

src/main/java/com/gxwebsoft/cms/entity/CmsArticle.java

@@ -109,6 +109,16 @@ public class CmsArticle implements Serializable {
     @Schema(description = "实际阅读量")
     private Integer actualViews;
 
+    @Schema(description = "阅读量（实际阅读量 + 虚拟阅读量，仅用于展示）")
+    @TableField(exist = false)
+    private Integer views;
+
+    public Integer getViews() {
+        int actual = actualViews == null ? 0 : actualViews;
+        int virtual = virtualViews == null ? 0 : virtualViews;
+        return actual + virtual;
+    }
+
     @Schema(description = "评分")
     private BigDecimal rate;
 

src/main/java/com/gxwebsoft/cms/service/impl/CmsArticleServiceImpl.java

@@ -112,9 +112,15 @@ public class CmsArticleServiceImpl extends ServiceImpl<CmsArticleMapper, CmsArti
     param.setArticleId(articleId);
     final CmsArticle article = param.getOne(baseMapper.selectListRel(param));
     if (ObjectUtil.isNotEmpty(article)) {
-      // 更新阅读数量
-      article.setActualViews(article.getActualViews() + 1);
-      updateById(article);
+      // 原子递增实际阅读量（COALESCE 兼容历史空值，避免并发覆盖）
+      boolean viewUpdated = lambdaUpdate()
+          .setSql("actual_views = COALESCE(actual_views, 0) + 1")
+          .eq(CmsArticle::getArticleId, article.getArticleId())
+          .update();
+      if (viewUpdated) {
+        int current = article.getActualViews() == null ? 0 : article.getActualViews();
+        article.setActualViews(current + 1);
+      }
       // 读取Banner
 //      final CmsModel model = cmsModelService.getOne(new LambdaQueryWrapper<CmsModel>().eq(CmsModel::getModel, article.getModel()).last("limit 1"));
 //      if (ObjectUtil.isNotEmpty(model)) {