feat(ui): implement chat completion views (#2201)

# What does this PR do?
 Implements table and detail views for chat completions

<img width="1548" alt="image"
src="https://github.com/user-attachments/assets/01061b7f-0d47-4b3b-b5ac-2df8f9035ef6"
/>
<img width="1549" alt="image"
src="https://github.com/user-attachments/assets/738d8612-8258-4c2c-858b-bee39030649f"
/>


## Test Plan
npm run test

llama_stack/ui/app/logs/chat-completions/[id]/page.tsx

@@ -0,0 +1,62 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { useParams } from "next/navigation";
+import LlamaStackClient from "llama-stack-client";
+import { ChatCompletion } from "@/lib/types";
+import { ChatCompletionDetailView } from "@/components/chat-completions/chat-completion-detail";
+
+export default function ChatCompletionDetailPage() {
+  const params = useParams();
+  const id = params.id as string;
+
+  const [completionDetail, setCompletionDetail] =
+    useState<ChatCompletion | null>(null);
+  const [isLoading, setIsLoading] = useState<boolean>(true);
+  const [error, setError] = useState<Error | null>(null);
+
+  useEffect(() => {
+    if (!id) {
+      setError(new Error("Completion ID is missing."));
+      setIsLoading(false);
+      return;
+    }
+
+    const client = new LlamaStackClient({
+      baseURL: process.env.NEXT_PUBLIC_LLAMA_STACK_BASE_URL,
+    });
+
+    const fetchCompletionDetail = async () => {
+      setIsLoading(true);
+      setError(null);
+      setCompletionDetail(null);
+      try {
+        const response = await client.chat.completions.retrieve(id);
+        setCompletionDetail(response as ChatCompletion);
+      } catch (err) {
+        console.error(
+          `Error fetching chat completion detail for ID ${id}:`,
+          err,
+        );
+        setError(
+          err instanceof Error
+            ? err
+            : new Error("Failed to fetch completion detail"),
+        );
+      } finally {
+        setIsLoading(false);
+      }
+    };
+
+    fetchCompletionDetail();
+  }, [id]);
+
+  return (
+    <ChatCompletionDetailView
+      completion={completionDetail}
+      isLoading={isLoading}
+      error={error}
+      id={id}
+    />
+  );
+}