Poe's Anthropic compatible endpoint is missing.

There is a new Anthropic compatible endpoint for Anthropic Models documented here: https://creator.poe.com/docs/external-applications/anthropic-compatible-api

The Poe API provides access to Claude models through an Anthropic-compatible endpoint. Use your Poe API key to access Claude without needing a separate Anthropic API key.

Key benefits:

• Use your existing Poe subscription points with no additional setup
• Drop-in replacement for the Anthropic API - works with existing Anthropic SDK code
• Requests are proxied directly to the provider with minimal transformation

If you're already using the Anthropic SDK, you can switch to using Poe by simply changing the base URL and API key. For full API reference, see Anthropic's official documentation.

Not sure how this would be added/handled in this repo but felt it should be added.

providers/poe/provider.toml:

name = "Poe"
env = ["POE_API_KEY"]
npm = "@ai-sdk/openai-compatible"
api = "https://api.poe.com/v1"
doc= "https://creator.poe.com/docs/external-applications/openai-compatible-api"

Start with providers/poe/provider.toml and compare its current OpenAI-compatible endpoint with the Anthropic-compatible API documentation linked in the issue. Determine how this endpoint should be represented in the provider configuration; done means the Poe Anthropic-compatible endpoint is documented and usable through the repository's provider data.