修改上下文参数传递，实现门店登录

internal/model/storeAdmin.go

@@ -0,0 +1,18 @@
+package model
+
+type StoreAdminInfoIn struct {
+	StoreAdminId int64
+}
+
+type StoreAdminInfoOut struct {
+	Username string
+}
+
+type StoreAdminLoginIn struct {
+	Username string
+	Password string
+}
+
+type StoreAdminLoginOut struct {
+	Token string
+}