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.js

@@ -0,0 +1,13 @@
+Component({
+  properties: {
+    imageUrl: { type: String, value: '' },
+    name: { type: String, value: '' },
+    rating: { type: Number, value: 0 },
+    sales: { type: String, value: '' },
+    avgPrice: { type: Number, value: 0 },
+    distance: { type: String, value: '' },
+    extra: { type: String, value: '' },
+    recommendReason: { type: String, value: '' },
+    signatureDishes: { type: Array, value: [] }
+  }
+});