docs: auto generated documentation for providers

Simple approach to get some provider pages in the docs.

Add or update description fields in the provider configuration class
using Pydantic’s Field, ensuring these descriptions are clear and
complete, as they will be used to auto-generate provider documentation
via ./scripts/distro_codegen.py instead of editing the docs
manually.

Signed-off-by: Sébastien Han <seb@redhat.com>

docs/source/providers/scoring/index.md

@@ -0,0 +1,7 @@
+# Scoring Providers
+
+This section contains documentation for all available providers for the **scoring** API.
+
+- [inline::basic](inline_basic.md)
+- [inline::braintrust](inline_braintrust.md)
+- [inline::llm-as-judge](inline_llm-as-judge.md)

docs/source/providers/scoring/inline_basic.md

@@ -0,0 +1,13 @@
+# inline::basic
+
+## Description
+
+Basic scoring provider for simple evaluation metrics and scoring functions.
+
+## Sample Configuration
+
+```yaml
+{}
+
+```
+

docs/source/providers/scoring/inline_braintrust.md

@@ -0,0 +1,19 @@
+# inline::braintrust
+
+## Description
+
+Braintrust scoring provider for evaluation and scoring using the Braintrust platform.
+
+## Configuration
+
+| Field | Type | Required | Default | Description |
+|-------|------|----------|---------|-------------|
+| `openai_api_key` | `str \| None` | No |  | The OpenAI API Key |
+
+## Sample Configuration
+
+```yaml
+openai_api_key: ${env.OPENAI_API_KEY:+}
+
+```
+

docs/source/providers/scoring/inline_llm-as-judge.md

@@ -0,0 +1,13 @@
+# inline::llm-as-judge
+
+## Description
+
+LLM-as-judge scoring provider that uses language models to evaluate and score responses.
+
+## Sample Configuration
+
+```yaml
+{}
+
+```
+