feat(chat): sync multi-role backend APIs

src/data/schemas/chat/response/chat_previews_response.ts

@@ -0,0 +1,21 @@
+import { z } from "zod";
+
+import { arrayOrEmpty } from "../../nullable-defaults";
+import { ChatMessageSchema } from "../chat_message";
+
+export const ChatPreviewItemSchema = z
+  .object({
+    characterId: z.string().min(1),
+    message: ChatMessageSchema.nullable().default(null),
+  })
+  .readonly();
+
+export const ChatPreviewsResponseSchema = z
+  .object({
+    items: arrayOrEmpty(ChatPreviewItemSchema),
+  })
+  .readonly();
+
+export type ChatPreviewItem = z.output<typeof ChatPreviewItemSchema>;
+export type ChatPreviewsResponseInput = z.input<typeof ChatPreviewsResponseSchema>;
+export type ChatPreviewsResponse = z.output<typeof ChatPreviewsResponseSchema>;

src/data/schemas/chat/response/index.ts

@@ -3,6 +3,7 @@
  */
 
 export * from "./chat_history_response";
+export * from "./chat_previews_response";
 export * from "./chat_send_response";
 export * from "./unlock_history_response";
 export * from "./unlock_private_response";