Idiomatic REST API: Inspect (#779)

# What does this PR do?

Since provider list returns a map grouping providers by API, we should
not be using data. This PR fixes the types to just be the plain dict,
basically reverting back to previous behavior



## Test Plan

llama-stack on  fix-provider-list [$] 🅒 stack❯
LLAMA_STACK_CONFIG="/Users/dineshyv/.llama/distributions/llamastack-together/together-run.yaml"
pytest -v tests/client-sdk/safety/test_safety.py

llama_stack/apis/inspect/inspect.py

@@ -4,7 +4,7 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from typing import Dict, List, Protocol, runtime_checkable
+from typing import List, Protocol, runtime_checkable
 
 from llama_models.schema_utils import json_schema_type, webmethod
 from pydantic import BaseModel
@@ -38,13 +38,17 @@ class ListProvidersResponse(BaseModel):
     data: List[ProviderInfo]
 
 
+class ListRoutesResponse(BaseModel):
+    data: List[RouteInfo]
+
+
 @runtime_checkable
 class Inspect(Protocol):
-    @webmethod(route="/providers/list", method="GET")
+    @webmethod(route="/inspect/providers", method="GET")
     async def list_providers(self) -> ListProvidersResponse: ...
 
-    @webmethod(route="/routes/list", method="GET")
+    @webmethod(route="/inspect/routes", method="GET")
-    async def list_routes(self) -> Dict[str, List[RouteInfo]]: ...
+    async def list_routes(self) -> ListRoutesResponse: ...
 
     @webmethod(route="/health", method="GET")
     async def health(self) -> HealthInfo: ...

llama_stack/distribution/inspect.py

@@ -5,13 +5,14 @@
 # the root directory of this source tree.
 
 from importlib.metadata import version
-from typing import Dict, List
 
 from pydantic import BaseModel
 
 from llama_stack.apis.inspect import (
     HealthInfo,
     Inspect,
+    ListProvidersResponse,
+    ListRoutesResponse,
     ProviderInfo,
     RouteInfo,
     VersionInfo,
@@ -38,36 +39,37 @@ class DistributionInspectImpl(Inspect):
     async def initialize(self) -> None:
         pass
 
-    async def list_providers(self) -> Dict[str, List[ProviderInfo]]:
+    async def list_providers(self) -> ListProvidersResponse:
         run_config = self.config.run_config
 
-        ret = {}
+        ret = []
         for api, providers in run_config.providers.items():
-            ret[api] = [
+            ret.append(
                 ProviderInfo(
                     provider_id=p.provider_id,
                     provider_type=p.provider_type,
                 )
                 for p in providers
-            ]
+            )
 
         return ret
 
-    async def list_routes(self) -> Dict[str, List[RouteInfo]]:
+    async def list_routes(self) -> ListRoutesResponse:
         run_config = self.config.run_config
 
-        ret = {}
+        ret = []
         all_endpoints = get_all_api_endpoints()
         for api, endpoints in all_endpoints.items():
             providers = run_config.providers.get(api.value, [])
-            ret[api.value] = [
+            ret.append(
                 RouteInfo(
                     route=e.route,
                     method=e.method,
                     provider_types=[p.provider_type for p in providers],
                 )
                 for e in endpoints
-            ]
+            )
+
         return ret
 
     async def health(self) -> HealthInfo: