4K Garden Diebian AI enhancements

overlay: 1.0.0
info:
  title: 4K Garden Diebian AI enhancements
  version: 1.0.0
x-provenance:
  generated: '2026-09-05'
  method: generated
  source: openapi/4k-garden-diebian-ai-openapi.json
  note: >-
    OpenAPI Overlay 1.0.0 capturing API Evangelist enhancements to 4K Garden's published
    contract. The original spec is never mutated. Every action below adds description or
    metadata that the springdoc-generated original omits; none of them invents behaviour.
    The actions are limited to facts established elsewhere in this repository and
    evidenced there.
extends: ../openapi/4k-garden-diebian-ai-openapi.json
actions:
- target: $.info
  description: Identify the operating company behind the product name.
  update:
    contact:
      name: 4K Garden (Sikai Garden Network Technology (Guangzhou) Co., Ltd.)
      email: bd@4kgarden.com
      url: https://www.4kgarden.com/
- target: $.info
  description: Record that the contract is served publicly but has no accompanying documentation.
  update:
    x-api-evangelist-note: >-
      Springdoc-generated backend contract for the Diebian AI super-resolution web
      application. Publicly served without credentials at
      https://video-cn.fly4k.com/api/v3/api-docs. The provider publishes no developer
      portal, reference or authentication documentation for it.
- target: $.servers
  description: Record the observed production API host alongside the framework-inferred server.
  update:
  - url: https://video-cn.fly4k.com
    description: >-
      Production host observed answering this contract's operations. The original
      servers[] entry (http://www.fly4k.com:80) is a springdoc "Inferred Url" derived
      from the request that fetched the document, and names the web front end over
      plaintext HTTP rather than the API host.
- target: $
  description: Declare the bearer-token scheme the contract omits.
  update:
    components:
      securitySchemes:
        bearerToken:
          type: http
          scheme: bearer
          description: >-
            DERIVED, not declared by the provider. POST /api/auth/login returns
            LoginResultVo with a `token` string, GET /api/auth/me is the
            current-principal endpoint, and all 63 operations declare 401 and 403. The
            transport header name is NOT published; do not assume Authorization without
            confirming against the application's own traffic.
- target: $.paths['/api/user/tasks/upload'].post
  description: Flag the billing consequence and the absence of replay protection.
  update:
    x-consequence: billable
    x-idempotency: none
    x-api-evangelist-note: >-
      Debits the prepaid credit balance. No Idempotency-Key mechanism exists, so a retry
      after an ambiguous timeout is charged again. A rehearsal endpoint exists at
      /api/user/tasks/uploadTest.
- target: $.paths['/api/user/tasks/{taskId}/cancel'].post
  description: Record this as the reversal path for task creation.
  update:
    x-reverses: createTaskUploadUsingPOST
    x-reversal-window: unpublished
- target: $.paths['/api/user/tasks/{taskId}/retry'].post
  description: Flag the undocumented re-billing behaviour.
  update:
    x-consequence: potentially-billable
    x-api-evangelist-note: >-
      No public documentation states whether a retry re-debits credits. Treat as
      billable until the provider confirms otherwise.
- target: $.paths['/api/tvc/task/cancel'].post
  description: Record this as the reversal path for TVC task creation.
  update:
    x-reverses: createTaskUsingPOST_1
    x-reversal-window: unpublished
- target: $.components.schemas.ApiResponse
  description: Document the uniform response envelope the contract leaves undescribed.
  update:
    description: >-
      Uniform response envelope used by every operation. `code` is 0 on success; `msg`
      is "success" on the success path and carries the failure message otherwise; `data`
      holds the payload. This is not RFC 9457 - there is no type, title, detail or
      instance member.