feat: add google sign-in, utils, refactor imports

- Restructure API import paths from @/request/api/* to cleaner @/api/[module] format
- Add three new utility classes: PhoneUtils for phone validation, ThrottleUtils and DebounceUtils for rate limiting
- Implement official Google One Tap login flow, add the GIS client script to index.html
- Clean up long inline template attributes in multiple Vue components for better readability
- Fix constant import path and default object return values in booking components

src/pages/goods/index.vue

@@ -57,7 +57,7 @@
 
 <script setup>
 import { ref } from "vue";
-import { goodsDetail, commodityDailyPriceList } from "@/request/api/GoodsApi";
+import { goodsDetail, commodityDailyPriceList } from "@/api/goods";
 import { DateUtils } from "@/utils";
 import TopNavBar from "@/components/TopNavBar/index.vue";
 import ImageSwiper from "@/components/ImageSwiper/index.vue";