docs(归档): 归档退款方式与原路退款变更并同步主规格

- 将 add-refund-methods-and-original-route-refunds 归档为
  2026-09-14-add-refund-methods-and-original-route-refunds。
- 合并两份 delta 到主规格：
  * order-refund-exchange：改写「订单、退款与换货状态门禁」，新增「退款实收金额与方式矩阵」
    「企业微信唯一终审与审批尝试重提」「原路退款渠道能力与执行」「退款权益与订单状态时点」
    「退款终态事实与失败分类」五项行为要求。
  * merchant-payment-routing：改写「商户与微信授权配置管理」与「新支付商户快照与历史兼容」
    （删除「不得新增渠道退款能力」与「不新增富友退款」，改由退款能力按商户凭证执行；
    微信 v2 客户端证书改为可选凭证键）。
- 同步上下文健康检查证据链与入口矩阵：为新要求登记证据行，并把退款创建、重提、
  企微审批回调、退款详情与 refund:channel:recovery 任务与对应要求双向关联。

docs/verification/context-reset/entry-capability-requirement-matrix.json

@@ -1095,7 +1095,8 @@
     "requirements": [
       "identity-access::数据范围拒绝",
       "order-refund-exchange::订单、退款与换货状态门禁",
-      "order-refund-exchange::代理退款查询按所属店铺隔离"
+      "order-refund-exchange::代理退款查询按所属店铺隔离",
+      "order-refund-exchange::退款终态事实与失败分类"
     ],
     "classification": "behavior"
   },
@@ -1106,7 +1107,8 @@
     "requirements": [
       "identity-access::数据范围拒绝",
       "order-refund-exchange::订单、退款与换货状态门禁",
-      "order-refund-exchange::代理退款查询按所属店铺隔离"
+      "order-refund-exchange::代理退款查询按所属店铺隔离",
+      "order-refund-exchange::退款终态事实与失败分类"
     ],
     "classification": "behavior"
   },
@@ -2322,7 +2324,8 @@
     "capability": "order-refund-exchange",
     "requirements": [
       "identity-access::数据范围拒绝",
-      "order-refund-exchange::订单、退款与换货状态门禁"
+      "order-refund-exchange::订单、退款与换货状态门禁",
+      "order-refund-exchange::退款实收金额与方式矩阵"
     ],
     "classification": "behavior"
   },
@@ -2355,7 +2358,8 @@
     "capability": "order-refund-exchange",
     "requirements": [
       "identity-access::数据范围拒绝",
-      "order-refund-exchange::订单、退款与换货状态门禁"
+      "order-refund-exchange::订单、退款与换货状态门禁",
+      "order-refund-exchange::企业微信唯一终审与审批尝试重提"
     ],
     "classification": "behavior"
   },
@@ -2795,7 +2799,9 @@
     "capability": "external-integration",
     "requirements": [
       "external-integration::企微回调与补偿",
-      "employee-collection-bill::核销申请审批、重提与幂等"
+      "employee-collection-bill::核销申请审批、重提与幂等",
+      "order-refund-exchange::企业微信唯一终审与审批尝试重提",
+      "order-refund-exchange::退款权益与订单状态时点"
     ],
     "classification": "behavior"
   },
@@ -3931,7 +3937,9 @@
     "capability": "order-refund-exchange",
     "requirements": [
       "order-refund-exchange::订单、退款与换货状态门禁",
-      "order-refund-exchange::代理退款查询按所属店铺隔离"
+      "order-refund-exchange::代理退款查询按所属店铺隔离",
+      "order-refund-exchange::原路退款渠道能力与执行",
+      "order-refund-exchange::退款终态事实与失败分类"
     ],
     "classification": "route_index_or_infrastructure"
   },