feat: 门店详情页商品原价上方新增商户电话模块，取客服电话字段并支持点击拨号

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

pages/venue/detail.vue

@@ -20,6 +20,17 @@
 			</view>
 		</view>
 
+		<!-- 商户电话（取商铺客服电话字段，点击拨号） -->
+		<view class="discount-section" v-if="store.servicePhone">
+			<view class="section-title">
+				<u-icon name="phone-fill" color="#0088ff" size="34"></u-icon>
+				<text class="discount-title">商户电话</text>
+			</view>
+			<view class="discount-list">
+				<text class="discount-item phone-link" @click="callPhone">{{ store.servicePhone }}</text>
+			</view>
+		</view>
+
 		<!-- 商品原价（内容取商铺门票信息字段） -->
 		<view class="discount-section" v-if="ticketInfoList.length">
 			<view class="section-title">
@@ -73,6 +84,11 @@ export default {
 		}
 	},
 	methods: {
+		// xuchao: 点击商户电话唤起拨号
+		callPhone() {
+			if (!this.store || !this.store.servicePhone) return
+			uni.makePhoneCall({ phoneNumber: String(this.store.servicePhone) })
+		},
 		loadDetail(shopId) {
 			const loc = uni.getStorageSync('lng') && uni.getStorageSync('lat')
 				? { lng: uni.getStorageSync('lng'), lat: uni.getStorageSync('lat') }
@@ -222,6 +238,11 @@ export default {
 	line-height: 1.6;
 }
 
+/* xuchao: 可点击拨号的电话样式 */
+.phone-link {
+	color: #0088ff;
+}
+
 /* 返回按钮 */
 .back-btn {
 	position: fixed;