refactor: fethcer interface & download flow (#1229)

pkg/rest/model/task.go

@@ -2,8 +2,13 @@ package model
 
 import "github.com/GopeedLab/gopeed/pkg/base"
 
+type ResolveTask struct {
+	Req  *base.Request `json:"req"`
+	Opts *base.Options `json:"opts"`
+}
 type CreateTask struct {
-	Rid string        `json:"rid"`
-	Req *base.Request `json:"req"`
-	Opt *base.Options `json:"opt"`
+	Rid string `json:"rid"`
+
+	Req  *base.Request `json:"req"`
+	Opts *base.Options `json:"opts"`
 }