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feat: pluggable image-to-text service with OpenAI vision backend (#1038)

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Adds a full-stack image description service: schema, base class,                                                                  
OpenAI backend, gateway dispatch, client APIs (sync/async REST +
websocket), tg-describe-image CLI, IAM capability, and specs.                                                                     
                                                                                                                                    
Closes #879
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Sunny Yang 2026-07-12 05:47:04 -06:00 • committed by GitHub
parent 9136526863
commit 40f01c123b
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42 changed files with 1845 additions and 14 deletions
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specs/websocket/components/messages/requests/ImageToTextRequest.yaml Normal file
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type: object
description: WebSocket request for image-to-text service (flow-scoped service)
required:
- id
- service
- flow
- request
properties:
id:
type: string
description: Unique request identifier
service:
type: string
const: image-to-text
description: Service identifier for image-to-text service
flow:
type: string
description: Flow ID
request:
$ref: '../../../../api/components/schemas/image-to-text/ImageToTextRequest.yaml'
examples:
- id: req-1
service: image-to-text
flow: my-flow
request:
image: iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==
mime_type: image/png
prompt: Describe this image