revert Merge pull request 'REFACTOR OpenAI service to manage env and convo creation' (#12) from issue/9-hacer-una-funcin-que-inserte-el-id-de-conversacin into main
Reviewed-on: AlexRG/genesis-2#12
- Add fromEnv factory to OpenAIService to handle env vars
- Move conversation creation into OpenAIService
- Update create- chat-conversation function to use new OpenAIService
methods
- Add CORS headers to responses