UiDictionaries:
  get:
    operationId: getUiDictionaries
    summary: 查询统一UI展示字典
    description: 返回启动时加载的只读展示标签；不提供配置路径或写操作。
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    responses:
      '200':
        description: 完整UI展示字典
        headers:
          X-Request-Id:
            description: 与响应体requestId相同
            schema:
              type: string
              format: uuid
        content:
          application/json:
            schema:
              $ref: '../components/schemas.yaml#/UiDictionariesResponse'
      '401':
        $ref: '../components/responses.yaml#/AuthenticationError'
      '500':
        $ref: '../components/responses.yaml#/InternalError'

LoginBackground:
  get:
    operationId: getLoginBackground
    summary: 查询登录界面自定义背景图
    description: >-
      返回服务端运行目录下的 background.jpg 或 background.png（jpg优先）；
      携带 theme 查询参数（blue/red/green）时优先返回 background-{theme}.jpg/png，
      主题背景图不存在时回落通用 background.jpg/png（契约1.31）；
      运行目录不存在背景图文件时返回404，前端回退默认纯色背景。
      接口公开（登录前无凭证可访问），允许浏览器缓存60秒。
    security: []
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
      - name: theme
        in: query
        required: false
        description: 主题键（契约1.31）；白名单外的取值按未提供处理，回落通用背景图。
        schema:
          type: string
          enum: [blue, red, green]
    responses:
      '200':
        description: 背景图片二进制
        headers:
          X-Request-Id:
            description: 与请求发送的X-Request-Id一致
            schema:
              type: string
              format: uuid
        content:
          image/jpeg:
            schema:
              type: string
              format: binary
          image/png:
            schema:
              type: string
              format: binary
      '404':
        description: 运行目录下不存在背景图文件
        content:
          application/json:
            schema:
              $ref: '../components/schemas.yaml#/ErrorResponse'
      '500':
        $ref: '../components/responses.yaml#/InternalError'

# 契约1.62 登录页文案：大标题与底部小字（sys_setting 键值表
# login.title / login.footer 行，行不存在=未设置，前端回落内置默认）。
LoginBranding:
  get:
    operationId: getLoginBranding
    summary: 读取登录页文案（大标题与底部小字）
    description: >-
      契约1.62。接口公开（登录前无凭证可访问，登录页与登录背景图同模式）；
      响应data={title,footerText}，null=未设置（前端回落内置默认文案）。
    security: []
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    responses:
      '200':
        description: 登录页文案（null=未设置）
        headers:
          X-Request-Id:
            description: 与响应体requestId相同
            schema:
              type: string
              format: uuid
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              required: [title, footerText]
              properties:
                title: {type: [string, 'null'], description: 登录页大标题，最长64字，null=未设置}
                footerText: {type: [string, 'null'], description: 登录页底部小字，最长200字，null=未设置}
      '500':
        $ref: '../components/responses.yaml#/InternalError'
  put:
    operationId: updateLoginBranding
    summary: 保存登录页文案
    description: >-
      契约1.62。manage_system管理位；请求体必含且仅含title与footerText
      （传null或空白即清除、恢复默认；非字符串返回400 INVALID_ARGUMENT
      「{字段}必须是字符串」；title超过64字返回400「登录页大标题不能超过64字」、
      footerText超过200字返回400「登录页底部小字不能超过200字」）；两文案分别
      upsert至sys_setting的login.title/login.footer行；响应回显{title,footerText}；
      审计LOGIN_BRANDING_UPDATE（targetType=SYSTEM，targetName=login-branding）。
    security:
      - BearerAuth: []
    parameters:
      - $ref: '../components/parameters.yaml#/XRequestId'
    requestBody:
      required: true
      content:
        application/json:
          schema:
            type: object
            additionalProperties: false
            required: [title, footerText]
            properties:
              title: {type: [string, 'null'], description: 登录页大标题，null/空白即恢复默认}
              footerText: {type: [string, 'null'], description: 登录页底部小字，null/空白即恢复默认}
    responses:
      '200':
        description: 已保存（data回显两文案）
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              required: [title, footerText]
              properties:
                title: {type: [string, 'null'], description: 保存后的登录页大标题}
                footerText: {type: [string, 'null'], description: 保存后的登录页底部小字}
      '400': {$ref: '../components/responses.yaml#/InvalidArgument'}
      '401': {$ref: '../components/responses.yaml#/AuthenticationError'}
      '403': {$ref: '../components/responses.yaml#/Forbidden'}
      '500': {$ref: '../components/responses.yaml#/InternalError'}