feat: re-work distro-codegen

each *.py file in the various templates now has to use `Provider`s rather than the stringified provider_types in the DistributionTemplate. Adjust that, regenerate all templates, docs, etc.

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

llama_stack/templates/nvidia/run-with-safety.yaml

@@ -85,11 +85,9 @@ providers:
   scoring:
   - provider_id: basic
     provider_type: inline::basic
-    config: {}
   tool_runtime:
   - provider_id: rag-runtime
     provider_type: inline::rag-runtime
-    config: {}
 metadata_store:
   type: sqlite
   db_path: ${env.SQLITE_STORE_DIR:=~/.llama/distributions/nvidia}/registry.db