Automatically update list of LLM models using the /models API endpoint

[johnpccd]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

It would be a nice feature if the list of OpenAI and OpenRouter models is automatically updated by parsing the output of the /models API endpoint.
Because otherwise, I need to add new/modified models myself.. and that also requires re-entering the API key.
Instead, Dify can parse the output of:

https://api.openai.com/v1/models
and
https://openrouter.ai/api/v1/models

and automatically update the list of models.

2. Additional context or comments

No response

3. Can you help us with this feature?

• I am interested in contributing to this feature.