完善合作获客员备注名：保存时校验长度，弹窗展示 saler_real_name。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/Features/CooperationOrder/Views/CooperationAcquirerView.swift

@@ -88,6 +88,10 @@ struct CooperationAcquirerView: View {
             Button("保存") {
                 // 必须在弹窗关闭前同步捕获，避免 alert dismiss 清空 state 导致接口未调用。
                 guard let acquirer = remarkEditingAcquirer else { return }
+                if let message = CooperationOrderRemarkName.validationMessage(for: remarkDraft) {
+                    toastCenter.show(message)
+                    return
+                }
                 let saleUserId = acquirer.saleUserId
                 let draft = remarkDraft
                 showRemarkAlert = false
@@ -98,7 +102,7 @@ struct CooperationAcquirerView: View {
             }
         } message: {
             if let acquirer = remarkEditingAcquirer {
-                Text("为 \(acquirer.salerName.cooperationNonEmptyOrDefault(acquirer.name)) 设置备注名")
+                Text("为 \(acquirer.salerRealName.cooperationNonEmptyOrDefault("—")) 设置备注名")
             }
         }
     }