BorrowRequestCreate:
  parameters:
    - {name: id, in: path, required: true, schema: {$ref: '../components/schemas.yaml#/StringId'}}
  post:
    operationId: createBorrowRequest
    summary: 提交调阅申请（一批用户共用一张必传PDF/图片审批单）
    description: 契约1.37调阅申请审批流；契约1.66起不再要求二次认证、审批单必传；契约1.72起审批单支持PDF与图片（jpg/jpeg/png/gif/bmp/webp，魔数校验）。multipart/form-data两个part——request（JSON对象字符串{entries,expiresAt}，必须）+file（PDF或图片审批单，必传——缺失或空文件返回400 INVALID_ARGUMENT「调阅申请必须上传审批单（PDF 或图片）」）；仅主案可申请，申请人须既无查看又无下载权限且密级足够；提交即向所有CONFIG_PERMISSION用户发APPROVAL+PENDING待办通知，响应{requestId,notified}；任一条目用户已有待审批申请返回409 BORROW_REQUEST_DUPLICATE；审计BORROW_REQUEST_CREATE。
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    requestBody:
      required: true
      content:
        multipart/form-data:
          schema:
            type: object
            additionalProperties: false
            required: [request, file]
            properties:
              request:
                type: string
                description: 申请载荷JSON字符串（BorrowRequestCreateRequest）。
              file: {type: string, format: binary, description: PDF或图片审批单（契约1.66必传、契约1.72扩图，一批用户共用一张）}
    responses:
      '200': {description: 申请受理结果（requestId与通知审批人数）, content: {application/json: {schema: {$ref: '../components/schemas.yaml#/BorrowRequestCreateResultResponse'}}}}
      '400': {$ref: '../components/responses.yaml#/InvalidArgument'}
      '401': {$ref: '../components/responses.yaml#/AuthenticationError'}
      '403': {$ref: '../components/responses.yaml#/Forbidden'}
      '404': {$ref: '../components/responses.yaml#/NotFound'}
      '409': {$ref: '../components/responses.yaml#/Conflict'}
      '413': {$ref: '../components/responses.yaml#/PayloadTooLarge'}
      '415': {$ref: '../components/responses.yaml#/UnsupportedMedia'}
      '500': {$ref: '../components/responses.yaml#/InternalError'}

BorrowRequestDetail:
  parameters:
    - {name: id, in: path, required: true, schema: {$ref: '../components/schemas.yaml#/StringId'}}
  get:
    operationId: getBorrowRequestDetail
    summary: 查询调阅申请单详情
    description: 申请人本人或对该文档有授权权限的用户可见（审批人「查看审批单」）；status为PENDING/APPROVED/REJECTED，任一审批人处理即定。
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    responses:
      '200': {description: 申请单详情（含条目列表）, content: {application/json: {schema: {$ref: '../components/schemas.yaml#/BorrowRequestDetailResponse'}}}}
      '401': {$ref: '../components/responses.yaml#/AuthenticationError'}
      '403': {$ref: '../components/responses.yaml#/Forbidden'}
      '404': {$ref: '../components/responses.yaml#/NotFound'}
      '500': {$ref: '../components/responses.yaml#/InternalError'}

BorrowRequestVoucher:
  parameters:
    - {name: id, in: path, required: true, schema: {$ref: '../components/schemas.yaml#/StringId'}}
  get:
    operationId: downloadBorrowRequestVoucher
    summary: 下载调阅申请审批单
    description: 成功返回附件二进制（含nosniff；Content-Type按扩展名映射——PDF为application/pdf、图片为对应image/*）；可见性同申请详情；未上传审批单或文件缺失返回404。
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    responses:
      '200': {description: 审批单二进制（PDF或图片）, content: {application/pdf: {schema: {type: string, format: binary}}, image/jpeg: {schema: {type: string, format: binary}}, image/png: {schema: {type: string, format: binary}}, image/gif: {schema: {type: string, format: binary}}, image/bmp: {schema: {type: string, format: binary}}, image/webp: {schema: {type: string, format: binary}}}}
      '401': {$ref: '../components/responses.yaml#/AuthenticationError'}
      '403': {$ref: '../components/responses.yaml#/Forbidden'}
      '404': {$ref: '../components/responses.yaml#/NotFound'}
      '500': {$ref: '../components/responses.yaml#/InternalError'}