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/app.js

@@ -0,0 +1,30 @@
+App({
+  globalData: {
+    userInfo: null,
+    location: null,
+    baseUrl: 'http://localhost:8080'
+  },
+
+  onLaunch() {
+    // 不在 onLaunch 中直接调定位，等用户操作时再申请，符合新版隐私规范
+  },
+
+  getLocation(callback) {
+    const that = this;
+    wx.getLocation({
+      type: 'gcj02',
+      success: (res) => {
+        that.globalData.location = {
+          latitude: res.latitude,
+          longitude: res.longitude
+        };
+        if (callback) callback(null, that.globalData.location);
+      },
+      fail: (err) => {
+        console.log('定位失败:', err);
+        // 引导用户手动选择位置或开启定位
+        if (callback) callback(err);
+      }
+    });
+  }
+});