feat: refine codex live chat context flows

src/app/main/mainChatPanel/chatUtils.ts

@@ -2,6 +2,7 @@ import type { Dispatch, SetStateAction } from 'react';
 import { appendClientIdHeader, getOrCreateClientId } from '../clientIdentity';
 import { getRegisteredAccessToken, hasRegisteredAccessTokenAccess } from '../tokenAccess';
 import { reportClientError } from '../errorLogApi';
+import { copyTextToClipboard } from '../../../utils/clipboard';
 import type {
   ChatActivityEvent,
   ChatConversationActivityLog,
@@ -839,32 +840,7 @@ export async function diagnoseConnectionFailure(targetUrl: string, closeEvent?:
 }
 
 export async function copyText(text: string) {
-  if (typeof navigator !== 'undefined' && navigator.clipboard?.writeText) {
-    await navigator.clipboard.writeText(text);
-    return;
-  }
-
-  if (typeof document === 'undefined') {
-    throw new Error('클립보드를 사용할 수 없습니다.');
-  }
-
-  const textarea = document.createElement('textarea');
-  textarea.value = text;
-  textarea.setAttribute('readonly', '');
-  textarea.style.position = 'fixed';
-  textarea.style.opacity = '0';
-  document.body.appendChild(textarea);
-  textarea.select();
-
-  try {
-    const copied = document.execCommand('copy');
-
-    if (!copied) {
-      throw new Error('복사 명령이 거부되었습니다.');
-    }
-  } finally {
-    document.body.removeChild(textarea);
-  }
+  return copyTextToClipboard(text);
 }
 
 export type PreviewCopyResult = 'text' | 'image' | 'url';
@@ -1419,6 +1395,23 @@ export async function deleteChatConversationRoom(sessionId: string) {
   return response;
 }
 
+export async function clearChatConversationRoom(sessionId: string) {
+  const clientId = getOrCreateClientId();
+  const response = await requestChatApi<{ ok: boolean; item: ChatConversationSummary }>(
+    `/conversations/${encodeURIComponent(sessionId)}/clear`,
+    {
+      method: 'POST',
+    },
+  );
+
+  invalidateChatConversationListCache();
+
+  return {
+    ...response.item,
+    notifyOffline: resolveSyncedChatOfflineNotificationSetting(response.item.sessionId, response.item.notifyOffline, clientId),
+  };
+}
+
 export async function deleteChatConversationRequest(sessionId: string, requestId: string) {
   const response = await requestChatApi<{ ok: boolean; deleted: boolean; sessionId: string; requestId: string }>(
     `/conversations/${encodeURIComponent(sessionId)}/requests/${encodeURIComponent(requestId)}`,
@@ -1450,13 +1443,16 @@ function areChatMessagesEquivalent(left: ChatMessage[], right: ChatMessage[]) {
 
   return left.every((message, index) => {
     const other = right[index];
+    const leftParts = JSON.stringify(message.parts ?? []);
+    const rightParts = JSON.stringify(other?.parts ?? []);
 
     return (
       other &&
       message.id === other.id &&
       message.author === other.author &&
       message.text === other.text &&
-      message.timestamp === other.timestamp
+      message.timestamp === other.timestamp &&
+      leftParts === rightParts
     );
   });
 }
@@ -1491,6 +1487,7 @@ export function upsertChatMessage(previous: ChatMessage[], incoming: ChatMessage
     ...existingMessage,
     ...incoming,
     text: nextText,
+    parts: incoming.parts ?? existingMessage.parts ?? [],
     deliveryStatus: null,
     retryCount: 0,
   };