fix: openrouter chatmodel api and embedding api

[TorrentBrave]

i want to use openrouter api for free instead of openai or deepseek api, but use openrouter api directly will run error

for fix this problem, i add some code for fit openrouter api in health_check.py, thanks to this action, i can use R&D_Agent for free today

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📚 Documentation preview 📚: https://RDAgent--1253.org.readthedocs.build/en/1253/

[TorrentBrave]

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@microsoft-github-policy-service agree

[Hoder-zyf]

In fact, my test shows that openrouter could be called using current structure, include these lines in your .env:

BACKEND=rdagent.oai.backend.LiteLLMAPIBackend
OPENAI_API_KEY="your open-router api-key"
OPENAI_API_BASE="https://openrouter.ai/api/v1"
CHAT_MODEL="the full model-name on openrouter"

[TorrentBrave]

In fact, my test shows that openrouter could be called using current structure, include these lines in your .env:

BACKEND=rdagent.oai.backend.LiteLLMAPIBackend
OPENAI_API_KEY="your open-router api-key"
OPENAI_API_BASE="https://openrouter.ai/api/v1"
CHAT_MODEL="the full model-name on openrouter"

actually, in my test the full model-name on openrouter is not ok :(