Mistral AI embedding provider

Uses Mistral AI's Embeddings API for embedding generation. Mistral provides high-quality embeddings with EU data residency.

Requirements

A Mistral API key, either: - Set via MISTRAL_API_KEY environment variable - Passed in config as api_key => <<"...">>>

Configuration

   Config = #{
       api_key => <<"...">>,                           %% API key (or use env var)
       url => <<"https://api.mistral.ai/v1">>,         %% API base URL (default)
       model => <<"mistral-embed">>,                   %% Model name (default, 1024 dims)
       timeout => 30000,                               %% Timeout in ms (default)
       dimension => 1024                               %% Vector dimension (default)
   }.

Supported Models

- <<"mistral-embed">> - Default, 1024 dims, multilingual