Version: 0.9.79.dev.260506

后端：
1. 本地后端启动体系收口到 `backend/scripts`，移除 `cmd/all` 聚合入口，并将仓库根兼容启动语义收敛为 `StartAPI` 别名；新增 dev-up / dev-down / services-up / services-down / dev-status / dev-logs / service-restart 脚本，统一托管多服务进程、日志、PID 与基础设施启动。
2. 课表服务超时口径统一放宽到 5 分钟，覆盖 gateway / client / rpc server / config example，避免课表导入与图片识别在长耗时场景下被内层提前截断。
3. `today` 课表查询修正为读取真实当前日期，不再使用硬编码测试日期；同时剔除旧缓存与返回结果里的 `empty` 占位事件，后端只返回真实日程，空档改由前端时间轴自行补齐。

前端：
4. 首页路由切回改为复用 `DashboardView` 实例，补 `keep-alive`、`onActivated` 与双帧缩放重算，修复从侧栏返回首页时首帧布局放大与重复加载闪动问题。
5. 首页加载态与今日时间线口径收口：移除额外 800ms `pageLoading` 人为延迟，task / schedule 改为分开驱动；时间线忽略 `empty` 事件，并统一空档文案为“无课”。
6. 收敛助手页与首页若干进场/弹性动画，降低结果卡片、微调弹窗、思考区与面板切换时的抖动感。

仓库：
7. README 补充后端本地快速启动说明，`.gitignore` 忽略 `backend/.dev` 脚本运行态产物。

backend/services/runtime/conv/schedule.go

@@ -163,6 +163,97 @@ func SchedulesToUserTodaySchedule(schedules []model.Schedule) []model.UserTodayS
 	return result
 }
 
+// SchedulesToExistingUserTodaySchedule 只返回真实存在的日程事件，不再补“无课/empty”占位。
+//
+// 职责边界：
+// 1. 负责把 DAO 返回的当天原子节次合并成前端展示事件。
+// 2. 负责保留真实课程/任务与嵌入任务信息。
+// 3. 不负责生成空档占位，空档展示交给前端按固定时间轴自行补齐。
+func SchedulesToExistingUserTodaySchedule(schedules []model.Schedule) []model.UserTodaySchedule {
+	if len(schedules) == 0 {
+		return []model.UserTodaySchedule{}
+	}
+
+	dayGroups := make(map[string][]model.Schedule)
+	dayKeys := make([]string, 0, len(schedules))
+	for _, s := range schedules {
+		dayKey := fmt.Sprintf("%d-%d", s.Week, s.DayOfWeek)
+		if _, ok := dayGroups[dayKey]; !ok {
+			dayKeys = append(dayKeys, dayKey)
+		}
+		dayGroups[dayKey] = append(dayGroups[dayKey], s)
+	}
+	sort.Strings(dayKeys)
+
+	result := make([]model.UserTodaySchedule, 0, len(dayKeys))
+	for _, dayKey := range dayKeys {
+		daySchedules := dayGroups[dayKey]
+		todayDTO := model.UserTodaySchedule{
+			Week:      daySchedules[0].Week,
+			DayOfWeek: daySchedules[0].DayOfWeek,
+			Events:    []model.EventBrief{},
+		}
+
+		sectionMap := make(map[int]model.Schedule, len(daySchedules))
+		for _, s := range daySchedules {
+			sectionMap[s.Section] = s
+		}
+
+		order := 1
+		for curr := 1; curr <= 12; {
+			slot, ok := sectionMap[curr]
+			if !ok {
+				curr++
+				continue
+			}
+
+			end := curr
+			for next := curr + 1; next <= 12; next++ {
+				nextSlot, exist := sectionMap[next]
+				if !exist || nextSlot.EventID != slot.EventID {
+					break
+				}
+				end = next
+			}
+
+			location := ""
+			if slot.Event.Location != nil {
+				location = *slot.Event.Location
+			}
+
+			brief := model.EventBrief{
+				ID:        slot.EventID,
+				Order:     order,
+				Name:      slot.Event.Name,
+				Location:  location,
+				Type:      slot.Event.Type,
+				StartTime: sectionTimeMap[curr][0],
+				EndTime:   sectionTimeMap[end][1],
+				Span:      end - curr + 1,
+			}
+
+			for i := curr; i <= end; i++ {
+				if s, exist := sectionMap[i]; exist && s.EmbeddedTask != nil && s.EmbeddedTask.Content != nil {
+					brief.EmbeddedTaskInfo = model.TaskBrief{
+						ID:   s.EmbeddedTask.ID,
+						Name: *s.EmbeddedTask.Content,
+						Type: "task",
+					}
+					break
+				}
+			}
+
+			todayDTO.Events = append(todayDTO.Events, brief)
+			curr = end + 1
+			order++
+		}
+
+		result = append(result, todayDTO)
+	}
+
+	return result
+}
+
 func SchedulesToUserWeeklySchedule(schedules []model.Schedule) *model.UserWeekSchedule {
 	if len(schedules) == 0 {
 		return &model.UserWeekSchedule{