feat(M08-B): 接入保洁微信转账适配器

backend/tests/cleaning-route.test.mjs

@@ -151,6 +151,16 @@ const app = await buildApp({
         return { byStatus: { SUBMITTED: 2 }, pendingSettlementCents: 1200 };
       }
     },
+    payoutService: {
+      async executeWechatTransfer(input) {
+        calls.push(['executeWechatTransfer', input]);
+        return {
+          settlement: settlementResponse(input.mode === 'MOCK' ? 'PAID' : 'CONFIRMED'),
+          transferState: input.mode === 'MOCK' ? 'SUCCESS' : 'WAIT_USER_CONFIRM',
+          idempotent: false
+        };
+      }
+    },
     mediaStorage: {
       async storeImage(input) {
         calls.push(['storeImage', input]);
@@ -373,6 +383,18 @@ assert.equal(paidSettlement.json().data.status, 'PAID');
 assert.equal(paidSettlement.json().data.payoutReference, 'wx-paid-001');
 assert.equal(calls.at(-1)[0], 'markSettlementPaid');
 
+const wechatTransfer = await app.inject({
+  method: 'POST',
+  url: '/admin-api/cleaning/settlements/501/wechat-transfer',
+  headers: { authorization: `Bearer ${token}` },
+  payload: { mode: 'API', note: 'wechat transfer' }
+});
+assert.equal(wechatTransfer.statusCode, 200);
+assert.equal(wechatTransfer.json().data.transferState, 'WAIT_USER_CONFIRM');
+assert.equal(calls.at(-1)[0], 'executeWechatTransfer');
+assert.equal(calls.at(-1)[1].settlementId, '501');
+assert.equal(calls.at(-1)[1].mode, 'API');
+
 const reclaimed = await app.inject({
   method: 'POST',
   url: '/admin-api/cleaning/reclaim-timeouts',