## Summary
- Add a disabled built-in `litellm` provider fragment backed by the
OpenAI-compatible adapter and local proxy defaults.
- Document how to enable LiteLLM in `settings.toml`, configure
credentials, and declare explicit LiteLLM-routed models.
- Register the LiteLLM integration page and cross-link it from the model
and settings docs.
## Validation
- `cargo test -p fabro-model`
- `cargo test -p fabro-config`
- `jq empty docs/public/docs.json`
- `rg -n 'aliases = \["openai_compatible",
"openai-compatible"\]|llm\.discovery|FABRO_LITELLM|litellm_api_key_env|x-litellm-'
lib/crates/fabro-model/src/catalog/providers/litellm.toml
docs/public/integrations/litellm.mdx
docs/public/core-concepts/models.mdx
docs/public/reference/user-configuration.mdx` returned no matches
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Co-authored-by: Mark Ferraz <mferraz@netwoven.com>