perf(client): defer chat persistence dependencies

src/stores/chat/machine/actors/send.ts

@@ -3,7 +3,7 @@ import { fromCallback, fromPromise } from "xstate";
 import { ExceptionHandler } from "@/core/errors";
 import { MessageQueue } from "@/core/net/message-queue";
 import type { ChatSendResponse } from "@/data/dto/chat";
-import { getChatRepository } from "@/data/repositories/chat_repository";
+import { loadChatRepository } from "@/data/repositories/chat_repository_loader";
 import { resolveChatCacheOwnerKey } from "@/data/repositories/chat_cache_identity";
 import { Logger } from "@/utils/logger";
 import { Result } from "@/utils/result";
@@ -66,7 +66,7 @@ async function sendMessageViaHttp(content: string): Promise<{
   response: ChatSendResponse;
   reply: UiMessage | null;
 }> {
-  const chatRepo = getChatRepository();
+  const chatRepo = await loadChatRepository();
   const cacheIdentityResult = await resolveChatCacheOwnerKey();
   const result = await chatRepo.sendMessage(content);
   if (Result.isErr(result)) {