暂存一下,防止丢失

internal/domain/approval/repository.go

@@ -0,0 +1,12 @@
+package approval
+
+import (
+	"context"
+)
+
+// Repository 定义通用审批实例的写侧持久化接缝。
+type Repository interface {
+	Create(ctx context.Context, instance *Instance) error
+	GetForUpdate(ctx context.Context, instanceID uint) (*Instance, error)
+	SaveDecision(ctx context.Context, instance *Instance, expectedStatus int, expectedVersion int) (bool, error)
+}