Add dify plugin

[sorphwer]

Add Plugins to let Dify* be your LLM services in your agent.

*Dify is a platform that allows you to design an agentic workflow and publish it as an API services. This plugin implements LLM class and can be tired right now since I've uploaded the package in Pypi:

# pip install livekit-plugins-dify
from livekit.plugins import dify
agent = VoicePipelineAgent(
        vad=ctx.proc.userdata["vad"],
        stt=deepgram.STT(model=dg_model),
        llm=dify.LLM(
            base_url="Your Dify API URL",
            api_key="Your App key",
        ),
        tts=openai.TTS()
        chat_ctx=initial_ctx,
    )

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Latest commit: 898c02a

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[sorphwer]

@davidzhao Sorry for bothering, I wonder if any @livekit members coud be able to review this or just comment this :)

[davidzhao]

Hi @sorphwer, thank you for the PR. While the PR looks fine, it's difficult for us to keep up with maintaining plugins for all sorts of services.

I would suggest putting this plugin in your own repo, release to Pypi, and letting us know so we can link to it in our integrations section.

[sorphwer]

@davidzhao Thanks for your reply! Actually this has been released to Pypi → https://pypi.org/project/livekit-plugins-dify/

[davidzhao]

fantastic! though it'd be great if this is not in the livekit. package, to correctly distinguish official plugins from third-party.