feat: add QRCode state api, support QRCode login

model/qrcode.go

@@ -0,0 +1,23 @@
+package model
+
+type QRCodeState int
+
+// QRCode State
+const (
+	WaitScan    QRCodeState = 1
+	WaitAuth    QRCodeState = 2
+	ConfirmAuth QRCodeState = 3
+	CancelAuth  QRCodeState = 4
+	Expired     QRCodeState = 5
+)
+
+type QRCode struct {
+	id      string
+	State   QRCodeState
+	LoginId string
+	Ticket  string
+}
+
+func NewQRCode(id string) *QRCode {
+	return &QRCode{id: id, State: WaitScan}
+}