feat: implement basic web app

frontend/src/app/workspace/chats/page.tsx

@@ -0,0 +1,18 @@
+"use client";
+
+import {
+  WorkspaceBody,
+  WorkspaceContainer,
+  WorkspaceHeader,
+} from "@/components/workspace/workspace-container";
+
+export default function ChatsPage() {
+  return (
+    <WorkspaceContainer>
+      <WorkspaceHeader></WorkspaceHeader>
+      <WorkspaceBody>
+        <div className="flex size-full justify-center"></div>
+      </WorkspaceBody>
+    </WorkspaceContainer>
+  );
+}