fix: handle visual novel typed SSE events

src/services/visual-novel-creation/visualNovelCreationClient.ts

@@ -9,7 +9,10 @@ import type {
 } from '../../../packages/shared/src/contracts/visualNovel';
 import type { TextStreamOptions } from '../aiTypes';
 import { type ApiRetryOptions, requestJson } from '../apiClient';
-import { createCreationAgentClient } from '../creation-agent';
+import {
+  createCreationAgentClient,
+  normalizeVisualNovelAgentStreamEvent,
+} from '../creation-agent';
 
 const VISUAL_NOVEL_AGENT_API_BASE = '/api/creation/visual-novel/sessions';
 const VISUAL_NOVEL_CREATION_WRITE_RETRY: ApiRetryOptions = {
@@ -61,7 +64,10 @@ export function streamVisualNovelMessage(
   payload: SendVisualNovelMessageRequest,
   options: TextStreamOptions = {},
 ) {
-  return visualNovelAgentHttpClient.streamMessage(sessionId, payload, options);
+  return visualNovelAgentHttpClient.streamMessage(sessionId, payload, {
+    ...options,
+    normalizeEvent: normalizeVisualNovelAgentStreamEvent,
+  });
 }
 
 export function executeVisualNovelAction(