first commit

backend/internal/service/scheduler_outbox.go

@@ -0,0 +1,21 @@
+package service
+
+import (
+	"context"
+	"time"
+)
+
+type SchedulerOutboxEvent struct {
+	ID        int64
+	EventType string
+	AccountID *int64
+	GroupID   *int64
+	Payload   map[string]any
+	CreatedAt time.Time
+}
+
+// SchedulerOutboxRepository 提供调度 outbox 的读取接口。
+type SchedulerOutboxRepository interface {
+	ListAfter(ctx context.Context, afterID int64, limit int) ([]SchedulerOutboxEvent, error)
+	MaxID(ctx context.Context) (int64, error)
+}