## yingce.payment/v1

支持 `validate_config`、`create_order`、`query_order`、`close_order`、`verify_notification` 和 `download_trade_bill`，统一返回 JSON 响应。

易支付渠道协议全部封装在本插件内：V1 下单 `POST /mapi.php`（MD5），查单 `GET /api.php?act=order`；V2 下单 `POST /api/pay/create`（RSA，`method=jump`），异步通知为 form/JSON，成功应答 `success`。配置字段包括 `publicBaseUrl`、`pid`、`key`、`gateway`、`payType`、`version`、`checkoutMode`、`privateKey`、`platformPublicKey`。V2 无查单和交易账单下载：关单只关本地订单，对账账单返回 not found。

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## Manifest 完整接口定义

以下 JSON 与插件包内实际 `manifest.json` 逐字段一致，覆盖插件身份、权限、配置、鉴权、参数、校验、创建、Agent、查询、取消、结果下载、响应和 Agent 响应映射。`documentation` 字段的值就是当前完整文档；为避免文档在自身内部无限递归，JSON 中仅用等义占位文本表示正文。

```json
{
  "apiVersion": "yingce.plugin/v1",
  "id": "official-payment-epay",
  "name": "易支付",
  "version": "1.0.8",
  "author": "Epay",
  "description": "易支付适配器，支持 V1/MD5 与 V2/RSA 的支付宝/微信/QQ 通道。",
  "enabled": true,
  "installable": true,
  "runtime": {
    "backend": "rpc",
    "backendEntry": "backend/provider"
  },
  "surfaces": [
    "wallet",
    "settings"
  ],
  "permissions": [
    "payment.create",
    "payment.query",
    "payment.close",
    "payment.reconcile"
  ],
  "configuration": {
    "fields": [
      {
        "name": "publicBaseUrl",
        "type": "url",
        "label": "服务器公网地址",
        "required": true,
        "description": "用于确认回调可达；实际 notify_url 由宿主订单生成。"
      },
      {
        "name": "pid",
        "type": "string",
        "label": "商户号 (pid)",
        "required": true
      },
      {
        "name": "key",
        "type": "password",
        "label": "商户密钥 (key)",
        "required": false,
        "secret": true,
        "description": "V1/MD5 密钥；version=1 可留空。"
      },
      {
        "name": "gateway",
        "type": "url",
        "label": "支付网关",
        "required": true,
        "default": "https://pay.admincloudai.com",
        "description": "易支付根地址，不要带 /mapi.php。"
      },
      {
        "name": "payType",
        "type": "string",
        "label": "默认支付方式",
        "required": false,
        "default": "alipay",
        "values": [
          "alipay",
          "wxpay",
          "qqpay",
          "usdt"
        ]
      },
      {
        "name": "version",
        "type": "string",
        "label": "接口版本",
        "required": false,
        "default": "0",
        "values": [
          "0",
          "1"
        ],
        "description": "0=V1/MD5，1=V2/RSA。"
      },
      {
        "name": "checkoutMode",
        "type": "string",
        "label": "收银方式",
        "required": false,
        "default": "redirect",
        "values": [
          "redirect",
          "qr_code"
        ],
        "description": "redirect 跳转；qr_code 展示二维码载荷。"
      },
      {
        "name": "privateKey",
        "type": "textarea",
        "label": "V2 商户私钥",
        "required": false,
        "secret": true,
        "description": "仅 version=1，PEM 或裸 Base64。"
      },
      {
        "name": "platformPublicKey",
        "type": "textarea",
        "label": "V2 平台公钥",
        "required": false,
        "description": "仅 version=1，PEM 或裸 Base64。"
      }
    ]
  },
  "contributes": {
    "paymentProviders": [
      {
        "id": "epay",
        "label": "易支付",
        "icon": "assets/icon.svg",
        "checkoutMode": "redirect",
        "identityFields": [
          "pid"
        ],
        "expiryPolicy": {
          "defaultMinutes": 10,
          "minMinutes": 5,
          "maxMinutes": 1440
        },
        "notificationSuccess": {
          "status": 200,
          "contentType": "text/plain; charset=utf-8",
          "body": "success"
        },
        "notificationFailure": {
          "status": 400,
          "contentType": "text/plain; charset=utf-8",
          "body": "failure"
        }
      }
    ]
  },
  "documentation": "<当前插件的完整 documentation，由 README.md 与 docs/interface.md 拼接而成；为避免 JSON 递归，此处不重复展开正文。>"
}
```
<!-- YINGCE_MANIFEST_CONTRACT_END -->