Begin refactoring the module and insert the OpenAI PHP client to be used.

composer.json

config/schema/openai.schema.yml

modules/openai_api/README.md

modules/openai_api/config/schema/openai_api.schema.yml

modules/openai_api/openai_api.info.yml

modules/openai_api/openai_api.links.menu.yml

modules/openai_api/openai_api.routing.yml

modules/openai_api/openai_api.services.yml

modules/openai_api/src/Form/ApiSettingsForm.php

modules/openai_api/src/OpenAIService.php

openai.info.yml

openai.links.menu.yml

openai.routing.yml

openai.services.yml

src/Form/ApiSettingsForm.php

src/Http/ClientFactory.php

tests/src/Unit/Http/ClientFactoryTest.php