refactor: 未匹配收款金额列改名unclaimed_amount为unmatch_amount_rec

doc/docs/业务流程/2026-10-29-收款流水菜单改造（数据源A301-2改A301-1-认领只登记本地并推送合规C107-1与C107-3作废同步）.md

@@ -75,7 +75,7 @@ A301-1 收款单查询（业务日期窗口取 `thirdParty.bfi.recBillSync.days`
 | kingdee_bill_status | `billstatus` 映射 | A/B已提交→pushed、C已审核→approved、D已收款→received、其余（含G退单）→failed |
 | detail_serial_no | 主单 `billno` | 明细流水号=收款单号，**幂等键**；主单粒度，一张收款单一条流水，不展开流水分录 |
 | receipt_amount | 主单 `actrecamt` | 收款金额（金蝶收款金额口径） |
-| unclaimed_amount | `unmatchamountrec` | 未匹配收款金额（认领上限口径） |
+| unmatch_amount_rec | `unmatchamountrec` | 未匹配收款金额（认领上限口径；原列名 unclaimed_amount 已改名） |
 | match_amount_rec | `matchamountrec` | 已匹配收款金额 |
 | match_amount_pay | `matchamountpay` | 已匹配付款金额 |
 | unmatch_amount_pay | `unmatchamountpay` | 未匹配付款金额 |

doc/sql/transport/lqj/20261029/03_blade_kingdee_receipt_flow_unmatch_amount_rec_rename_20261029.sql

@@ -0,0 +1,15 @@
+-- 收款流水表未匹配收款金额列改名：unclaimed_amount（A301-2 公告未认领金额遗留列名）
+--   → unmatch_amount_rec（与 A301-1 字段口径及其他匹配金额列命名统一）
+
+SET @ddl_sql = (
+  SELECT IF(COUNT(*) = 1,
+    'ALTER TABLE `blade_kingdee_receipt_flow` RENAME COLUMN `unclaimed_amount` TO `unmatch_amount_rec`',
+    'SELECT 1')
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'blade_kingdee_receipt_flow'
+    AND COLUMN_NAME = 'unclaimed_amount'
+);
+PREPARE ddl_stmt FROM @ddl_sql;
+EXECUTE ddl_stmt;
+DEALLOCATE PREPARE ddl_stmt;