Version: 0.9.70.dev.260504

后端：
1. 阶段 5 schedule 首刀服务化落地，新增 `cmd/schedule`、`services/schedule/{dao,rpc,sv,core}`、`gateway/client/schedule`、`shared/contracts/schedule` 和 schedule port
2. gateway `/api/v1/schedule/*` 切到 schedule zrpc client，HTTP 门面只保留鉴权、参数绑定、超时和轻量转发
3. active-scheduler 的 schedule facts、feedback 和 confirm apply 改为调用 schedule RPC adapter，减少对 `schedule_events`、`schedules`、`task_classes`、`task_items` 的跨域 DB 依赖
4. 单体聊天主动调度 rerun 的 schedule 读写链路切到 schedule RPC，迁移期仅保留 task facts 直读 Gorm
5. 为 schedule zrpc 补充 `Ping` 启动健康检查，并在 gateway client 与 active-scheduler adapter 初始化时校验服务可用
6. `cmd/schedule` 独立初始化 DB / Redis，只 AutoMigrate schedule 自有表，并显式检查迁移期 task / task-class 依赖表
7. 更新 active-scheduler 依赖表检查和 preview confirm apply 抽象，保留旧 Gorm 实现作为迁移期回退路径
8. 补充 `schedule.rpc` 示例配置和 schedule HTTP RPC 超时配置

文档：
1. 更新微服务迁移计划，将阶段 5 schedule 首刀进展、当前切流点、旧实现保留范围和 active-scheduler DB 依赖收缩情况写入基线

backend/services/schedule/rpc/handler.go

@@ -0,0 +1,166 @@
+package rpc
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+
+	"github.com/LoveLosita/smartflow/backend/respond"
+	"github.com/LoveLosita/smartflow/backend/services/schedule/rpc/pb"
+	schedulesv "github.com/LoveLosita/smartflow/backend/services/schedule/sv"
+	schedulecontracts "github.com/LoveLosita/smartflow/backend/shared/contracts/schedule"
+)
+
+type Handler struct {
+	pb.UnimplementedScheduleServer
+	svc *schedulesv.ScheduleService
+}
+
+func NewHandler(svc *schedulesv.ScheduleService) *Handler {
+	return &Handler{svc: svc}
+}
+
+// Ping 供调用方在启动期确认 schedule zrpc 已可用。
+func (h *Handler) Ping(ctx context.Context, req *pb.StatusResponse) (*pb.StatusResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	return &pb.StatusResponse{}, nil
+}
+
+func (h *Handler) GetToday(ctx context.Context, req *pb.UserRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	data, err := h.svc.GetUserTodaySchedule(ctx, int(req.UserId))
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) GetWeek(ctx context.Context, req *pb.WeekRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	data, err := h.svc.GetUserWeeklySchedule(ctx, int(req.UserId), int(req.Week))
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) DeleteEvents(ctx context.Context, req *pb.DeleteEventsRequest) (*pb.StatusResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	var events []schedulecontracts.UserDeleteScheduleEvent
+	if err := json.Unmarshal(req.EventsJson, &events); err != nil {
+		return nil, grpcErrorFromServiceError(respond.WrongParamType)
+	}
+	err := h.svc.DeleteScheduleEventByContract(ctx, schedulecontracts.DeleteScheduleEventsRequest{
+		UserID: int(req.UserId),
+		Events: events,
+	})
+	if err != nil {
+		return nil, grpcErrorFromServiceError(err)
+	}
+	return &pb.StatusResponse{}, nil
+}
+
+func (h *Handler) GetRecentCompleted(ctx context.Context, req *pb.RecentCompletedRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	data, err := h.svc.GetUserRecentCompletedSchedules(ctx, int(req.UserId), int(req.Index), int(req.Limit))
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) GetCurrent(ctx context.Context, req *pb.UserRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	data, err := h.svc.GetUserOngoingSchedule(ctx, int(req.UserId))
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) RevokeTaskItem(ctx context.Context, req *pb.RevokeTaskItemRequest) (*pb.StatusResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	if err := h.svc.RevocateUserTaskClassItem(ctx, int(req.UserId), int(req.EventId)); err != nil {
+		return nil, grpcErrorFromServiceError(err)
+	}
+	return &pb.StatusResponse{}, nil
+}
+
+func (h *Handler) SmartPlanning(ctx context.Context, req *pb.SmartPlanningRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	data, err := h.svc.SmartPlanning(ctx, int(req.UserId), int(req.TaskClassId))
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) SmartPlanningMulti(ctx context.Context, req *pb.SmartPlanningMultiRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	taskClassIDs := make([]int, 0, len(req.TaskClassIds))
+	for _, id := range req.TaskClassIds {
+		taskClassIDs = append(taskClassIDs, int(id))
+	}
+	data, err := h.svc.SmartPlanningMulti(ctx, int(req.UserId), taskClassIDs)
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) GetScheduleFactsByWindow(ctx context.Context, req *pb.JSONRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	var contractReq schedulecontracts.ScheduleWindowRequest
+	if err := json.Unmarshal(req.PayloadJson, &contractReq); err != nil {
+		return nil, grpcErrorFromServiceError(respond.WrongParamType)
+	}
+	data, err := h.svc.GetScheduleFactsByWindow(ctx, contractReq)
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) GetFeedbackSignal(ctx context.Context, req *pb.JSONRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	var contractReq schedulecontracts.FeedbackRequest
+	if err := json.Unmarshal(req.PayloadJson, &contractReq); err != nil {
+		return nil, grpcErrorFromServiceError(respond.WrongParamType)
+	}
+	feedback, found, err := h.svc.GetFeedbackSignal(ctx, contractReq)
+	return jsonResponse(schedulecontracts.FeedbackResponse{Feedback: feedback, Found: found}, err)
+}
+
+func (h *Handler) ApplyActiveScheduleChanges(ctx context.Context, req *pb.JSONRequest) (*pb.JSONResponse, error) {
+	if err := h.ensureReady(req); err != nil {
+		return nil, err
+	}
+	var contractReq schedulecontracts.ApplyActiveScheduleRequest
+	if err := json.Unmarshal(req.PayloadJson, &contractReq); err != nil {
+		return nil, grpcErrorFromServiceError(respond.WrongParamType)
+	}
+	data, err := h.svc.ApplyActiveScheduleChanges(ctx, contractReq)
+	return jsonResponse(data, err)
+}
+
+func (h *Handler) ensureReady(req any) error {
+	if h == nil || h.svc == nil {
+		return grpcErrorFromServiceError(errors.New("schedule service dependency not initialized"))
+	}
+	if req == nil {
+		return grpcErrorFromServiceError(respond.MissingParam)
+	}
+	return nil
+}
+
+func jsonResponse(value any, err error) (*pb.JSONResponse, error) {
+	if err != nil {
+		return nil, grpcErrorFromServiceError(err)
+	}
+	raw, err := json.Marshal(value)
+	if err != nil {
+		return nil, grpcErrorFromServiceError(err)
+	}
+	return &pb.JSONResponse{DataJson: raw}, nil
+}