fix: 补齐 MaDao 直连动态选项

恢复 MaDao 直连模式的服务商、国家、线路下拉，并通过 daemon providers/countries/operators 接口级联加载。保存 madaoOperator 并在 direct acquire 中通过 metadata.operator 下发，routing 模式保留已保存的直连配置。

tests/phone-verification-flow.test.js

@@ -9214,6 +9214,7 @@ test('phone verification helper reacquires MaDao direct numbers after releasing
     madaoRoutingPlanId: 'rp-stale',
     madaoProviderId: 'upstream-a',
     madaoCountry: 'gb',
+    madaoOperator: 'operator-a',
     madaoAutoPickCountry: false,
     madaoReusePhone: true,
     madaoMinPrice: '0.01',
@@ -9323,6 +9324,9 @@ test('phone verification helper reacquires MaDao direct numbers after releasing
     auto_pick_country: false,
     reuse_phone: true,
     country: 'GB',
+    metadata: {
+      operator: 'operator-a',
+    },
     min_price: 0.01,
     max_price: 0.2,
   });