feat(ui): add views for Responses (#2293)

# What does this PR do?
* Add responses list and detail views
* Refactored components to be shared as much as possible between chat
completions and responses

## Test Plan
<img width="2014" alt="image"
src="https://github.com/user-attachments/assets/6dee12ea-8876-4351-a6eb-2338058466ef"
/>
<img width="2021" alt="image"
src="https://github.com/user-attachments/assets/6c7c71b8-25b7-4199-9c57-6960be5580c8"
/>

added tests

llama_stack/ui/app/logs/responses/[id]/page.tsx

@@ -0,0 +1,125 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { useParams } from "next/navigation";
+import type { ResponseObject } from "llama-stack-client/resources/responses/responses";
+import { OpenAIResponse, InputItemListResponse } from "@/lib/types";
+import { ResponseDetailView } from "@/components/responses/responses-detail";
+import { client } from "@/lib/client";
+
+export default function ResponseDetailPage() {
+  const params = useParams();
+  const id = params.id as string;
+
+  const [responseDetail, setResponseDetail] = useState<OpenAIResponse | null>(
+    null,
+  );
+  const [inputItems, setInputItems] = useState<InputItemListResponse | null>(
+    null,
+  );
+  const [isLoading, setIsLoading] = useState<boolean>(true);
+  const [isLoadingInputItems, setIsLoadingInputItems] = useState<boolean>(true);
+  const [error, setError] = useState<Error | null>(null);
+  const [inputItemsError, setInputItemsError] = useState<Error | null>(null);
+
+  // Helper function to convert ResponseObject to OpenAIResponse
+  const convertResponseObject = (
+    responseData: ResponseObject,
+  ): OpenAIResponse => {
+    return {
+      id: responseData.id,
+      created_at: responseData.created_at,
+      model: responseData.model,
+      object: responseData.object,
+      status: responseData.status,
+      output: responseData.output as OpenAIResponse["output"],
+      input: [], // ResponseObject doesn't include input; component uses inputItems prop instead
+      error: responseData.error,
+      parallel_tool_calls: responseData.parallel_tool_calls,
+      previous_response_id: responseData.previous_response_id,
+      temperature: responseData.temperature,
+      top_p: responseData.top_p,
+      truncation: responseData.truncation,
+      user: responseData.user,
+    };
+  };
+
+  useEffect(() => {
+    if (!id) {
+      setError(new Error("Response ID is missing."));
+      setIsLoading(false);
+      return;
+    }
+
+    const fetchResponseDetail = async () => {
+      setIsLoading(true);
+      setIsLoadingInputItems(true);
+      setError(null);
+      setInputItemsError(null);
+      setResponseDetail(null);
+      setInputItems(null);
+
+      try {
+        const [responseResult, inputItemsResult] = await Promise.allSettled([
+          client.responses.retrieve(id),
+          client.responses.inputItems.list(id, { order: "asc" }),
+        ]);
+
+        // Handle response detail result
+        if (responseResult.status === "fulfilled") {
+          const convertedResponse = convertResponseObject(responseResult.value);
+          setResponseDetail(convertedResponse);
+        } else {
+          console.error(
+            `Error fetching response detail for ID ${id}:`,
+            responseResult.reason,
+          );
+          setError(
+            responseResult.reason instanceof Error
+              ? responseResult.reason
+              : new Error("Failed to fetch response detail"),
+          );
+        }
+
+        // Handle input items result
+        if (inputItemsResult.status === "fulfilled") {
+          const inputItemsData =
+            inputItemsResult.value as unknown as InputItemListResponse;
+          setInputItems(inputItemsData);
+        } else {
+          console.error(
+            `Error fetching input items for response ID ${id}:`,
+            inputItemsResult.reason,
+          );
+          setInputItemsError(
+            inputItemsResult.reason instanceof Error
+              ? inputItemsResult.reason
+              : new Error("Failed to fetch input items"),
+          );
+        }
+      } catch (err) {
+        console.error(`Unexpected error fetching data for ID ${id}:`, err);
+        setError(
+          err instanceof Error ? err : new Error("Unexpected error occurred"),
+        );
+      } finally {
+        setIsLoading(false);
+        setIsLoadingInputItems(false);
+      }
+    };
+
+    fetchResponseDetail();
+  }, [id]);
+
+  return (
+    <ResponseDetailView
+      response={responseDetail}
+      inputItems={inputItems}
+      isLoading={isLoading}
+      isLoadingInputItems={isLoadingInputItems}
+      error={error}
+      inputItemsError={inputItemsError}
+      id={id}
+    />
+  );
+}