refactor(data): replace schema classes with readonly models

src/stores/chat/__tests__/chat-unlock-flow.test.ts

@@ -1,7 +1,7 @@
 import { describe, expect, it } from "vitest";
 import { createActor, fromPromise, waitFor } from "xstate";
 
-import { ChatSendResponse } from "@/data/schemas/chat";
+import { ChatSendResponseSchema } from "@/data/schemas/chat";
 import type {
   UnlockMessageOutput,
   UnlockMessageRequest,
@@ -666,7 +666,7 @@ describe("chat unlock flow", () => {
     actor.send({
       type: "ChatQueuedHttpDone",
       output: {
-        response: ChatSendResponse.from({
+        response: ChatSendResponseSchema.parse({
           reply: "",
           audioUrl: "",
           messageId: "",