feat(agency): payment 加 name + appId 字段闭环 (PR #1719)

通知 mmg 前端:
- 「配置名称」+「AppId」字段已加入后端 entity/VO/DDL
- 三家公司默认值: name="微信支付-{code}" + appId="wx4711a76772deff36"
- 刷新页面即可看到字段全部填充, 不再空
- POST/PUT 请求 SaveReqVO 加 @NotBlank 必填 name + appId

测试服 round-trip 通过 (2026-05-06 16:55).
agency 模块 4 PR 全闭环 (#1715/#1717/#1718/#1719).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

changelogs/2026-05/06_feat_agency_payment_name_appid.md

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+# feat(agency): 支付配置加 name + appId 字段, 编辑表单不再空
+
+**日期**: 2026-05-06 16:55
+**通知对象**: @mmg (前端)
+**关联 PR**: wx/HL #1719 (已 merge dev + 测试服部署完成 + round-trip 通过)
+**前序**: PR #1717 (字典) + PR #1718 (nacos full sync)
+
+---
+
+## 一、用户反馈解决
+
+PR #1718 部署后, 用户截图反馈「编辑支付配置」对话框仍有 2 个字段为空:
+- 「配置名称」: 空 (placeholder "如: 微信支付-主商户号")
+- 「AppId」: 空 (placeholder "请输入 AppId")
+
+根因: `TravelAgencyPaymentDO` entity / SaveReqVO / RespVO 完全没有 `name` + `appId` 字段。
+
+---
+
+## 二、本 PR 修复
+
+| 类型 | 改动 |
+|---|---|
+| DDL V20260506_008 | `travel_agency_payment` ADD `name VARCHAR(64)` + `app_id VARCHAR(64)` |
+| Entity TravelAgencyPaymentDO | 加 `name` + `appId` 字段 |
+| AgencyPaymentSaveReqVO | 加 `name` (@NotBlank @Size 64) + `appId` (@NotBlank @Size 64) |
+| AgencyPaymentRespVO | 加 `name` + `appId` |
+| Service `toRespVO` | 同步 set name/appId |
+| `AgencyDataInitializer.initPaymentForAgency` | INSERT 默认 `name="微信支付-{code}"` + `appId=wechat.pay.app-id` (三家共用 `wx4711a76772deff36`); SYNC existing 字段空时回填 |
+
+---
+
+## 三、API 改动
+
+### `POST /admin/travel-agency/{agencyId}/payment` + `PUT .../payment/{paymentId}`
+
+`AgencyPaymentSaveReqVO` 新增 2 个 **必填字段**:
+
+```json
+{
+  "name": "微信支付-主商户号",       // ← 新增, @NotBlank, max 64
+  "mchId": "1106110439",
+  "appId": "wx4711a76772deff36",     // ← 新增, @NotBlank, max 64
+  "apiV3Key": "...",
+  "mchSerialNo": "...",
+  "publicKeyId": "PUB_KEY_ID_...",
+  "isDefault": 1,
+  "status": "ENABLED",
+  "remark": ""
+}
+```
+
+### `GET /admin/travel-agency/{agencyId}/payment` 响应
+
+```json
+{
+  "paymentId": 5001,
+  "agencyId": 2051922156798779394,
+  "name": "微信支付-hulai",            // ← 新增
+  "mchId": "1106110439",
+  "appId": "wx4711a76772deff36",       // ← 新增
+  "apiV3Key": "2XxC4RHqyipPMwpVoAhXsvj1hvrwgbAJ",
+  "mchSerialNo": "60508F77...",
+  "publicKeyId": "PUB_KEY_ID_0111061104392026020200181614001205",
+  "isDefault": 1,
+  "status": "ENABLED",
+  "statusLabel": "启用",
+  ...
+}
+```
+
+---
+
+## 四、测试服 round-trip 验证 (2026-05-06 16:55)
+
+```bash
+TOK=$(curl -sk -X POST "https://api.test.1814.love:9443/admin/auth/login" \
+  -H "Content-Type: application/json" \
+  -d '{"username":"admin","password":"Admin@123456"}' \
+  | python -c "import json,sys; print(json.load(sys.stdin)['data']['token'])")
+
+curl -sk "https://api.test.1814.love:9443/admin/travel-agency/2051922156798779394/payment" \
+  -H "Authorization: Bearer $TOK"
+```
+
+| 公司 | name | appId | mchId |
+|---|---|---|---|
+| hulai | 微信支付-hulai | wx4711a76772deff36 | 1106110439 |
+| qianshou | 微信支付-qianshou | wx4711a76772deff36 | 1246532201 |
+| hulai-wenlu | 微信支付-hulai-wenlu | wx4711a76772deff36 | 1684769133 |
+
+---
+
+## 五、前端
+
+- 新建表单: `name` + `appId` 必填, 已存在 `mchId` / `apiV3Key` / `mchSerialNo` / `publicKeyId` 字段保持
+- 编辑表单: 后端返回字段已填默认值 (`微信支付-{code}` / 三家共用 `wx4711a76772deff36`), admin 可改 name 为更友好命名
+- 刷新页面即可看到字段全部填充
+
+---
+
+## 六、agency 模块 4 个 PR 全闭环
+
+| PR | 内容 |
+|---|---|
+| #1715 | admin path 纠回 `/admin/travel-agency` (设计冻结) |
+| #1717 | 资质附件 qualificationType + 字典 (agency_qualification_type / agency_contract_platform) |
+| #1718 | nacos 完整字段同步 (teamReportAppId/SignKey/supportedPlatforms + payment 加密字段) |
+| **#1719** | **payment name + appId 字段(本 PR)** |
+
+---
+
+cc @mmg