refactor(data): merge DTO models into schemas

src/stores/chat/__tests__/chat-machine.test-utils.ts

@@ -3,8 +3,7 @@ import { fromCallback, fromPromise } from "xstate";
 import {
   ChatSendResponse,
   UnlockPrivateResponse,
-  type UiMessage,
-} from "@/data/dto/chat";
+} from "@/data/schemas/chat";
 import { DEFAULT_CHARACTER_ID } from "@/data/constants/character";
 import { chatMachine } from "@/stores/chat/chat-machine";
 import type { ChatEvent } from "@/stores/chat/chat-events";
@@ -13,6 +12,7 @@ import type {
   UnlockMessageRequest,
 } from "@/stores/chat/helper/unlock";
 import type { ChatHistoryActorInput } from "@/stores/chat/machine/actors/history";
+import type { UiMessage } from "@/stores/chat/ui-message";
 
 export interface SendMessageHttpOutput {
   response: ChatSendResponse;