fix: 修复 VoiceController Map.of 兼容性 + ExploreController 参数不匹配

- VoiceController: Map.of() -> Collections.singletonMap() 兼容 Java 8
- ExploreController: 补齐 takeoutService.roll() 缺失的 taste/priceRange/allergies 参数

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

miniapp/components/result-card/result-card.wxml

@@ -0,0 +1,21 @@
+<view class="result-card">
+  <image class="result-image" src="{{imageUrl}}" mode="aspectFill" wx:if="{{imageUrl}}"></image>
+  <view class="result-body">
+    <view class="result-rating" wx:if="{{rating}}">
+      <text class="star">⭐</text>
+      <text>{{rating}}</text>
+      <text wx:if="{{sales}}"> 月销{{sales}}</text>
+    </view>
+    <view class="result-name">{{name}}</view>
+    <view class="result-info" wx:if="{{avgPrice || distance}}">
+      <text wx:if="{{avgPrice}}">¥{{avgPrice}}/人</text>
+      <text wx:if="{{avgPrice && distance}}"> · </text>
+      <text wx:if="{{distance}}">{{distance}}</text>
+    </view>
+    <view class="result-extra" wx:if="{{extra}}">{{extra}}</view>
+    <view class="result-recommend" wx:if="{{recommendReason}}">"{{recommendReason}}"</view>
+    <view class="result-dishes" wx:if="{{signatureDishes && signatureDishes.length}}">
+      <text class="tag tag-orange" wx:for="{{signatureDishes}}" wx:key="*this">{{item}}</text>
+    </view>
+  </view>
+</view>