refactor(characters): drive shared UI from active character

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

@@ -1,6 +1,9 @@
 import { fromCallback, fromPromise } from "xstate";
 
-import { DEFAULT_CHARACTER_ID } from "@/data/constants/character";
+import {
+  DEFAULT_CHARACTER,
+  DEFAULT_CHARACTER_ID,
+} from "@/data/constants/character";
 import {
   ChatSendResponseSchema,
   UnlockPrivateResponseSchema,
@@ -36,6 +39,7 @@ export interface TestUnlockMessageOutput {
 
 export const TEST_CHAT_MACHINE_INPUT = {
   characterId: DEFAULT_CHARACTER_ID,
+  emptyChatGreeting: DEFAULT_CHARACTER.emptyChatGreeting,
 };
 
 export function makeChatSendResponse(): ChatSendResponse {
@@ -109,7 +113,10 @@ export function createTestChatMachine(
           return () => undefined;
         },
       ),
-      unlockHistory: fromPromise<UnlockHistoryOutput, { characterId: string }>(
+      unlockHistory: fromPromise<
+        UnlockHistoryOutput,
+        { characterId: string; emptyChatGreeting: string }
+      >(
         async () => {
           if (options.unlockHistoryError) {
             throw options.unlockHistoryError;