refactor: 统一替换登录跳转逻辑为通用方法

将项目内多处手动调用$refs.login.open的登录跳转逻辑，统一替换为新增的redirectTologin通用方法，简化代码并提升维护性，同时统一处理了延迟和nextTick调用逻辑。

pages_tool/member/card_buy.vue

@@ -293,17 +293,16 @@ export default {
 	onLoad() {
 		//会员卡
 		this.isIphoneX = this.$util.uniappIsIPhoneX();
-
-		if (this.storeToken) {
-			this.getCardList();
-		} else {
-			this.$nextTick(() => {
-				this.$refs.login.open('/pages_tool/member/card_buy', 'redirectTo');
-			});
+	},
+	onShow() { 
+		if (!this.storeToken) {
+			this.redirectTologin('/pages_tool/member/card_buy');
+			return;
 		}
+
+		this.getCardList();
 		this.getAgreement();
 	},
-	onShow() { },
 	watch: {
 		storeToken: function (nVal, oVal) {
 			if (nVal) {