feat: add method for retrieving result types of tasks

tasks.go

@@ -2,6 +2,7 @@ package sati
 
 type AnyTask interface {
 	serialize() task
+	Result() any
 }
 
 type task struct {
@@ -23,6 +24,10 @@ func (t *TurnstileTask) serialize() task {
 	}
 }
 
+func (t *TurnstileTask) Result() any {
+	return &TurnstileResult{}
+}
+
 type TurnstileResult struct {
 	Token string `json:"token"`
 }
@@ -39,6 +44,10 @@ func (t *ReCaptcha2Task) serialize() task {
 	}
 }
 
+func (t *ReCaptcha2Result) Result() any {
+	return &ReCaptcha2Result{}
+}
+
 type ReCaptcha2Result struct {
 	Token string `json:"token"`
 }