feat(splash): load latest chat message

src/lib/chat/splash_latest_message.ts

@@ -0,0 +1,16 @@
+"use client";
+
+import { getChatRepository } from "@/data/repositories/chat_repository";
+import { Result, type Result as ResultT } from "@/utils";
+
+import { getSplashLatestMessagePreview } from "./splash_latest_message_preview";
+
+export async function fetchSplashLatestMessagePreview(): Promise<
+  ResultT<string | null>
+> {
+  const result = await getChatRepository().getHistory(1, 0);
+  if (Result.isErr(result)) return Result.err(result.error);
+
+  const latestMessage = result.data.messages[0] ?? null;
+  return Result.ok(getSplashLatestMessagePreview(latestMessage));
+}