Models and providers

Provider resolution follows this order:

1. An explicit OpenAI-compatible provider configured with OPENAI_BASE_URL and OPENAI_API_KEY, or an active profile in providers.toml.
2. siGit Code Cloud when you are logged in.
3. An on-device model.

OPENAI_BASE_URL=https://api.example.com/v1 \
OPENAI_API_KEY=your-key \
sigit

On macOS, local models use the shared App Group cache so a model downloaded by the siGit desktop app can be reused by the CLI.