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>

src/llama-stack-api/llama_stack_api/shields.py

@@ -1,94 +0,0 @@
-# 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 Any, Literal, Protocol, runtime_checkable
-
-from pydantic import BaseModel
-
-from llama_stack_api.common.tracing import telemetry_traceable
-from llama_stack_api.resource import Resource, ResourceType
-from llama_stack_api.schema_utils import json_schema_type, webmethod
-from llama_stack_api.version import LLAMA_STACK_API_V1
-
-
-class CommonShieldFields(BaseModel):
-    params: dict[str, Any] | None = None
-
-
-@json_schema_type
-class Shield(CommonShieldFields, Resource):
-    """A safety shield resource that can be used to check content.
-
-    :param params: (Optional) Configuration parameters for the shield
-    :param type: The resource type, always shield
-    """
-
-    type: Literal[ResourceType.shield] = ResourceType.shield
-
-    @property
-    def shield_id(self) -> str:
-        return self.identifier
-
-    @property
-    def provider_shield_id(self) -> str | None:
-        return self.provider_resource_id
-
-
-class ShieldInput(CommonShieldFields):
-    shield_id: str
-    provider_id: str | None = None
-    provider_shield_id: str | None = None
-
-
-class ListShieldsResponse(BaseModel):
-    data: list[Shield]
-
-
-@runtime_checkable
-@telemetry_traceable
-class Shields(Protocol):
-    @webmethod(route="/shields", method="GET", level=LLAMA_STACK_API_V1)
-    async def list_shields(self) -> ListShieldsResponse:
-        """List all shields.
-
-        :returns: A ListShieldsResponse.
-        """
-        ...
-
-    @webmethod(route="/shields/{identifier:path}", method="GET", level=LLAMA_STACK_API_V1)
-    async def get_shield(self, identifier: str) -> Shield:
-        """Get a shield by its identifier.
-
-        :param identifier: The identifier of the shield to get.
-        :returns: A Shield.
-        """
-        ...
-
-    @webmethod(route="/shields", method="POST", level=LLAMA_STACK_API_V1, deprecated=True)
-    async def register_shield(
-        self,
-        shield_id: str,
-        provider_shield_id: str | None = None,
-        provider_id: str | None = None,
-        params: dict[str, Any] | None = None,
-    ) -> Shield:
-        """Register a shield.
-
-        :param shield_id: The identifier of the shield to register.
-        :param provider_shield_id: The identifier of the shield in the provider.
-        :param provider_id: The identifier of the provider.
-        :param params: The parameters of the shield.
-        :returns: A Shield.
-        """
-        ...
-
-    @webmethod(route="/shields/{identifier:path}", method="DELETE", level=LLAMA_STACK_API_V1, deprecated=True)
-    async def unregister_shield(self, identifier: str) -> None:
-        """Unregister a shield.
-
-        :param identifier: The identifier of the shield to unregister.
-        """
-        ...