feat: add huggingface post_training and dataset provider to template

the experimental_post_training template now uses HF post_training and dataset providers

Signed-off-by: Charlie Doern <cdoern@redhat.com>

llama_stack/templates/experimental-post-training/build.yaml

@@ -13,9 +13,10 @@ distribution_spec:
     - inline::basic
     - inline::braintrust
     post_training:
-    - inline::torchtune
+    - inline::huggingface
     datasetio:
     - inline::localfs
+    - remote::huggingface
     telemetry:
     - inline::meta-reference
     agents:

llama_stack/templates/experimental-post-training/run.yaml

@@ -49,16 +49,24 @@ providers:
         type: sqlite
         namespace: null
         db_path: ${env.SQLITE_STORE_DIR:~/.llama/distributions/experimental-post-training}/localfs_datasetio.db
+  - provider_id: huggingface
+    provider_type: remote::huggingface
+    config:
+      kvstore:
+        type: sqlite
+        namespace: null
+        db_path: ${env.SQLITE_STORE_DIR:~/.llama/distributions/huggingface}/huggingface_datasetio.db
   telemetry:
   - provider_id: meta-reference
     provider_type: inline::meta-reference
     config: {}
   post_training:
-  - provider_id: torchtune-post-training
-    provider_type: inline::torchtune
-    config: {
+  - provider_id: huggingface
+    provider_type: inline::huggingface
+    config:
       checkpoint_format: huggingface
-    }
+      distributed_backend: null
+      device: cpu
   agents:
   - provider_id: meta-reference
     provider_type: inline::meta-reference