实现企业银行账户与建行制单（corporate-bank-account-payment-order）

.github/workflows/ci-minimal.yml

@@ -33,6 +33,13 @@ jobs:
         working-directory: client
         run: npm ci
 
+      - name: Install BIFF8 roundtrip verifier
+        run: python3 -m pip install --disable-pip-version-check xlrd==2.0.2
+
+      - name: Verify payment-order BIFF8 contract
+        working-directory: server
+        run: node scripts/check-payment-order-xls-roundtrip.js
+
       - name: Run minimal checks
         run: ./scripts/check-minimal.sh