Initial commit of vite-chatgpt template

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/chat/index.ts

@@ -0,0 +1,8 @@
+export { ChatAgent } from "./ChatAgent";
+export { ChatInput } from "./ChatInput";
+export { ChatMessages } from "./ChatMessages";
+export { ChatPrompt } from "./ChatPrompt";
+export { ChatSidebar } from "./ChatSidebar";
+export type { Chat } from "./ChatSidebar";
+export type { UIMessage as Message } from "ai";
+export type { PromptSuggestion } from "./ChatPrompt";