fix: rename llama_stack_api dir (#4155)

# What does this PR do?

the directory structure was src/llama-stack-api/llama_stack_api

instead it should just be src/llama_stack_api to match the other
packages.

update the structure and pyproject/linting config

---------

Signed-off-by: Charlie Doern <cdoern@redhat.com>
Co-authored-by: Ashwin Bharambe <ashwin.bharambe@gmail.com>

tests/unit/providers/nvidia/test_datastore.py

@@ -8,10 +8,10 @@ import os
 from unittest.mock import patch
 
 import pytest
-from llama_stack_api import Dataset, DatasetPurpose, ResourceType, URIDataSource
 
 from llama_stack.providers.remote.datasetio.nvidia.config import NvidiaDatasetIOConfig
 from llama_stack.providers.remote.datasetio.nvidia.datasetio import NvidiaDatasetIOAdapter
+from llama_stack_api import Dataset, DatasetPurpose, ResourceType, URIDataSource
 
 
 @pytest.fixture

tests/unit/providers/nvidia/test_eval.py

@@ -8,6 +8,10 @@ import os
 from unittest.mock import MagicMock, patch
 
 import pytest
+
+from llama_stack.models.llama.sku_types import CoreModelId
+from llama_stack.providers.remote.eval.nvidia.config import NVIDIAEvalConfig
+from llama_stack.providers.remote.eval.nvidia.eval import NVIDIAEvalImpl
 from llama_stack_api import (
     Benchmark,
     BenchmarkConfig,
@@ -20,10 +24,6 @@ from llama_stack_api import (
     TopPSamplingStrategy,
 )
 
-from llama_stack.models.llama.sku_types import CoreModelId
-from llama_stack.providers.remote.eval.nvidia.config import NVIDIAEvalConfig
-from llama_stack.providers.remote.eval.nvidia.eval import NVIDIAEvalImpl
-
 MOCK_DATASET_ID = "default/test-dataset"
 MOCK_BENCHMARK_ID = "test-benchmark"
 

tests/unit/providers/nvidia/test_parameters.py

@@ -9,6 +9,12 @@ import warnings
 from unittest.mock import patch
 
 import pytest
+
+from llama_stack.core.library_client import convert_pydantic_to_json_value
+from llama_stack.providers.remote.post_training.nvidia.post_training import (
+    NvidiaPostTrainingAdapter,
+    NvidiaPostTrainingConfig,
+)
 from llama_stack_api import (
     DataConfig,
     DatasetFormat,
@@ -19,12 +25,6 @@ from llama_stack_api import (
     TrainingConfig,
 )
 
-from llama_stack.core.library_client import convert_pydantic_to_json_value
-from llama_stack.providers.remote.post_training.nvidia.post_training import (
-    NvidiaPostTrainingAdapter,
-    NvidiaPostTrainingConfig,
-)
-
 
 class TestNvidiaParameters:
     @pytest.fixture(autouse=True)

tests/unit/providers/nvidia/test_rerank_inference.py

@@ -8,11 +8,11 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import aiohttp
 import pytest
-from llama_stack_api import ModelType
 
 from llama_stack.providers.remote.inference.nvidia.config import NVIDIAConfig
 from llama_stack.providers.remote.inference.nvidia.nvidia import NVIDIAInferenceAdapter
 from llama_stack.providers.utils.inference.openai_mixin import OpenAIMixin
+from llama_stack_api import ModelType
 
 
 class MockResponse:

tests/unit/providers/nvidia/test_safety.py

@@ -9,6 +9,9 @@ from typing import Any
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
+
+from llama_stack.providers.remote.safety.nvidia.config import NVIDIASafetyConfig
+from llama_stack.providers.remote.safety.nvidia.nvidia import NVIDIASafetyAdapter
 from llama_stack_api import (
     OpenAIAssistantMessageParam,
     OpenAIUserMessageParam,
@@ -18,9 +21,6 @@ from llama_stack_api import (
     ViolationLevel,
 )
 
-from llama_stack.providers.remote.safety.nvidia.config import NVIDIASafetyConfig
-from llama_stack.providers.remote.safety.nvidia.nvidia import NVIDIASafetyAdapter
-
 
 class FakeNVIDIASafetyAdapter(NVIDIASafetyAdapter):
     """Test implementation that provides the required shield_store."""

tests/unit/providers/nvidia/test_supervised_fine_tuning.py

@@ -9,15 +9,6 @@ import warnings
 from unittest.mock import patch
 
 import pytest
-from llama_stack_api import (
-    DataConfig,
-    DatasetFormat,
-    LoraFinetuningConfig,
-    OptimizerConfig,
-    OptimizerType,
-    QATFinetuningConfig,
-    TrainingConfig,
-)
 
 from llama_stack.core.library_client import convert_pydantic_to_json_value
 from llama_stack.providers.remote.post_training.nvidia.post_training import (
@@ -27,6 +18,15 @@ from llama_stack.providers.remote.post_training.nvidia.post_training import (
     NvidiaPostTrainingJob,
     NvidiaPostTrainingJobStatusResponse,
 )
+from llama_stack_api import (
+    DataConfig,
+    DatasetFormat,
+    LoraFinetuningConfig,
+    OptimizerConfig,
+    OptimizerType,
+    QATFinetuningConfig,
+    TrainingConfig,
+)
 
 
 @pytest.fixture