move hf addapter->remote (#459)

# What does this PR do?

- move folder
## Test Plan

**Unit Test**
```
pytest -v -s -m "huggingface" datasetio/test_datasetio.py
```

**E2E**
```
llama stack run 
```

```
llama-stack-client eval run_benchmark meta-reference-mmlu --num-examples 5 --output-dir ./ --eval-task-config ~/eval_task_config.json --visualize
```
<img width="657" alt="image"
src="https://github.com/user-attachments/assets/63d53f9d-6c7e-4667-af8c-9d16c91ae6e3">



## Before submitting

- [ ] This PR fixes a typo or improves the docs (you can dismiss the
other checks if that's the case).
- [ ] Ran pre-commit to handle lint / formatting issues.
- [ ] Read the [contributor
guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
      Pull Request section?
- [ ] Updated relevant documentation.
- [ ] Wrote necessary unit or integration tests.

llama_stack/providers/remote/datasetio/huggingface/huggingface.py

@@ -0,0 +1,96 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+from typing import Optional
+
+from llama_stack.apis.datasetio import *  # noqa: F403
+
+
+import datasets as hf_datasets
+from llama_stack.providers.datatypes import DatasetsProtocolPrivate
+from llama_stack.providers.utils.datasetio.url_utils import get_dataframe_from_url
+from llama_stack.providers.utils.kvstore import kvstore_impl
+
+from .config import HuggingfaceDatasetIOConfig
+
+DATASETS_PREFIX = "datasets:"
+
+
+def load_hf_dataset(dataset_def: Dataset):
+    if dataset_def.metadata.get("path", None):
+        return hf_datasets.load_dataset(**dataset_def.metadata)
+
+    df = get_dataframe_from_url(dataset_def.url)
+
+    if df is None:
+        raise ValueError(f"Failed to load dataset from {dataset_def.url}")
+
+    dataset = hf_datasets.Dataset.from_pandas(df)
+    return dataset
+
+
+class HuggingfaceDatasetIOImpl(DatasetIO, DatasetsProtocolPrivate):
+    def __init__(self, config: HuggingfaceDatasetIOConfig) -> None:
+        self.config = config
+        # local registry for keeping track of datasets within the provider
+        self.dataset_infos = {}
+        self.kvstore = None
+
+    async def initialize(self) -> None:
+        self.kvstore = await kvstore_impl(self.config.kvstore)
+        # Load existing datasets from kvstore
+        start_key = DATASETS_PREFIX
+        end_key = f"{DATASETS_PREFIX}\xff"
+        stored_datasets = await self.kvstore.range(start_key, end_key)
+
+        for dataset in stored_datasets:
+            dataset = Dataset.model_validate_json(dataset)
+            self.dataset_infos[dataset.identifier] = dataset
+
+    async def shutdown(self) -> None: ...
+
+    async def register_dataset(
+        self,
+        dataset_def: Dataset,
+    ) -> None:
+        # Store in kvstore
+        key = f"{DATASETS_PREFIX}{dataset_def.identifier}"
+        await self.kvstore.set(
+            key=key,
+            value=dataset_def.json(),
+        )
+        self.dataset_infos[dataset_def.identifier] = dataset_def
+
+    async def get_rows_paginated(
+        self,
+        dataset_id: str,
+        rows_in_page: int,
+        page_token: Optional[str] = None,
+        filter_condition: Optional[str] = None,
+    ) -> PaginatedRowsResult:
+        dataset_def = self.dataset_infos[dataset_id]
+        loaded_dataset = load_hf_dataset(dataset_def)
+
+        if page_token and not page_token.isnumeric():
+            raise ValueError("Invalid page_token")
+
+        if page_token is None or len(page_token) == 0:
+            next_page_token = 0
+        else:
+            next_page_token = int(page_token)
+
+        start = next_page_token
+        if rows_in_page == -1:
+            end = len(loaded_dataset)
+        else:
+            end = min(start + rows_in_page, len(loaded_dataset))
+
+        rows = [loaded_dataset[i] for i in range(start, end)]
+
+        return PaginatedRowsResult(
+            rows=rows,
+            total_count=len(rows),
+            next_page_token=str(end),
+        )