Update LLM model configuration in environment files

[medihack]

No description provided.

[Copilot]

Pull Request Overview

Updates LLM model configuration across environment files to improve model handling and provider flexibility. The changes streamline model specification by using the model name directly from Hugging Face rather than requiring a specific URL, and enhance configuration documentation for different deployment scenarios.

• Refactored LLM model configuration to use HF_REPO instead of MODEL_URL for better Hugging Face integration
• Updated environment variable documentation to clarify usage across development and production environments
• Modified external LLM provider API key default value for better clarity

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
example.env	Enhanced LLM configuration comments and updated API key default value
docker-compose.dev.yml	Changed from MODEL_URL to HF_REPO environment variable for LLaMA.cpp

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[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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