!70 czh-20260630-修复计划滚动条问题

* czh-20260630-修复计划滚动条问题
* czh-AI-20260630-新增功能-帮助中心菜单项
* czh-AI-20260630-新增功能-帮助中心常量导出
* czh-AI-20260630-新增功能-帮助中心环境变量配置
* czh-20260630-优化拖拽效果
* czh-20260630-增加乐观更新；优化抽屉界面

src/views/tasklist/index.vue

@@ -844,19 +844,48 @@
     }
   }
 
+  function findTaskInGroups(taskId: string): { group: TaskGroup; task: TaskItem } | null {
+    for (const g of taskListGroups.value) {
+      for (const l of g.taskLists) {
+        for (const tg of l.groups) {
+          const t = tg.tasks.find((t: TaskItem) => t.id === taskId);
+          if (t) return { group: tg, task: t };
+        }
+      }
+    }
+    return null;
+  }
+
   async function onToggleTask(taskId: string) {
+    // 乐观更新：立刻切换 UI
+    if (isFlatView.value) {
+      const idx = flatTasks.value.findIndex((t) => t.id === taskId);
+      if (idx >= 0) {
+        flatTasks.value[idx] = { ...flatTasks.value[idx], completed: !flatTasks.value[idx].completed };
+      }
+    } else {
+      const found = findTaskInGroups(taskId);
+      if (found) {
+        found.task.completed = !found.task.completed;
+      }
+    }
+
     try {
       await toggleTaskStatus({ id: taskId });
+    } catch (e) {
+      console.error('[TaskList] 切换任务状态失败', e);
+      // 回滚
       if (isFlatView.value) {
         const idx = flatTasks.value.findIndex((t) => t.id === taskId);
         if (idx >= 0) {
           flatTasks.value[idx] = { ...flatTasks.value[idx], completed: !flatTasks.value[idx].completed };
         }
-      } else if (currentListId.value) {
-        await loadTasks(currentListId.value);
+      } else {
+        const found = findTaskInGroups(taskId);
+        if (found) {
+          found.task.completed = !found.task.completed;
+        }
       }
-    } catch (e) {
-      console.error('[TaskList] 切换任务状态失败', e);
     }
   }
 
@@ -1057,16 +1086,41 @@
   }
 
   async function onToggleSubTask(taskId: string) {
+    // 乐观更新：立刻切换子任务完成状态
+    if (isFlatView.value) {
+      const idx = flatTasks.value.findIndex((t) => t.id === taskId);
+      if (idx >= 0) {
+        flatTasks.value[idx] = { ...flatTasks.value[idx], completed: !flatTasks.value[idx].completed };
+      }
+    } else {
+      const found = findTaskInGroups(taskId);
+      if (found) {
+        found.task.completed = !found.task.completed;
+      }
+    }
+    refreshDrawer();
+
     try {
       await toggleTaskStatus({ id: taskId });
-      if (isFlatView.value) {
-        await refreshFlatViewTasks();
-      } else if (currentListId.value) {
-        await loadTasks(currentListId.value);
-        refreshDrawer();
-      }
+      refreshDrawer();
     } catch (e) {
       console.error('[TaskList] 切换子任务状态失败', e);
+      // 回滚
+      if (isFlatView.value) {
+        const idx = flatTasks.value.findIndex((t) => t.id === taskId);
+        if (idx >= 0) {
+          flatTasks.value[idx] = { ...flatTasks.value[idx], completed: !flatTasks.value[idx].completed };
+        }
+      } else {
+        const found = findTaskInGroups(taskId);
+        if (found) {
+          found.task.completed = !found.task.completed;
+        }
+      }
+      refreshDrawer();
+      if (currentListId.value) {
+        await loadTasks(currentListId.value);
+      }
     }
   }