feat: 优化产品点击和申购处理函数，增强类型安全和事件管理

src/views/product/index.vue

@@ -33,13 +33,12 @@ async function handleInfinite(event: InfiniteScrollCustomEvent) {
   }, 500);
 }
 
-function handleProductClick(product: any) {
+function handleProductClick(product: Product) {
   console.log("查看产品:", product.name);
   // TODO: 跳转到产品详情
 }
 
-function handleSubscribe(product: any, event: Event) {
-  event.stopPropagation();
+function handleSubscribe(product: Product) {
   console.log("申购产品:", product.name);
   // TODO: 实现申购功能
 }
@@ -124,7 +123,7 @@ onMounted(() => {
               <ion-button
                 expand="block"
                 class="subscribe-btn"
-                @click="handleSubscribe(product, $event)"
+                @click.stop="handleSubscribe(product)"
               >
                 <ion-icon slot="start" :icon="cardOutline" />
                 我要申购