fix: timeout 0s not working (#4932)

Signed-off-by: kevin <wanjunfeng@gmail.com>

rest/server.go

@@ -283,14 +283,14 @@ func WithSignature(signature SignatureConf) RouteOption {
 func WithSSE() RouteOption {
 	return func(r *featuredRoutes) {
 		r.sse = true
-		r.timeout = 0
+		r.timeout = ptrOfDuration(0)
 	}
 }
 
 // WithTimeout returns a RouteOption to set timeout with given value.
 func WithTimeout(timeout time.Duration) RouteOption {
 	return func(r *featuredRoutes) {
-		r.timeout = timeout
+		r.timeout = &timeout
 	}
 }
 
@@ -325,6 +325,10 @@ func handleError(err error) {
 	panic(err)
 }
 
+func ptrOfDuration(d time.Duration) *time.Duration {
+	return &d
+}
+
 func validateSecret(secret string) {
 	if len(secret) < 8 {
 		panic("secret's length can't be less than 8")