feat: add provider data keys for Cerebras, Databricks, NVIDIA, and RunPod

- added missing tests for Fireworks, Anthropic, Gemini, SambaNova, and vLLM

llama_stack/providers/remote/inference/nvidia/config.py

@@ -7,12 +7,19 @@
 import os
 from typing import Any
 
-from pydantic import Field, SecretStr
+from pydantic import BaseModel, Field, SecretStr
 
 from llama_stack.providers.utils.inference.model_registry import RemoteInferenceProviderConfig
 from llama_stack.schema_utils import json_schema_type
 
 
+class NVIDIAProviderDataValidator(BaseModel):
+    nvidia_api_key: str | None = Field(
+        default=None,
+        description="API key for NVIDIA NIM models",
+    )
+
+
 @json_schema_type
 class NVIDIAConfig(RemoteInferenceProviderConfig):
     """

llama_stack/providers/remote/inference/nvidia/nvidia.py

@@ -24,6 +24,8 @@ logger = get_logger(name=__name__, category="inference::nvidia")
 class NVIDIAInferenceAdapter(OpenAIMixin):
     config: NVIDIAConfig
 
+    provider_data_api_key_field: str = "nvidia_api_key"
+
     """
     NVIDIA Inference Adapter for Llama Stack.