feat: refine codex live chat flow

src/app/main/mainChatPanel/ChatConversationView.tsx

@@ -17,7 +17,7 @@ import {
   ThunderboltOutlined,
   UpOutlined,
 } from '@ant-design/icons';
-import { Alert, Button, Checkbox, Input, Select, Spin, message } from 'antd';
+import { Alert, Button, Checkbox, Input, Select, Spin, Typography, message } from 'antd';
 import type { TextAreaRef } from 'antd/es/input/TextArea';
 import {
   useEffect,
@@ -40,6 +40,7 @@ import { copyPreviewContent, copyText } from './chatUtils';
 import type { ChatComposerAttachment, ChatConversationRequest, ChatMessage } from './types';
 
 const KST_TIME_ZONE = 'Asia/Seoul';
+const { Text } = Typography;
 const KST_TIMESTAMP_PATTERN = /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/;
 const KST_DATE_TIME_FORMATTER = new Intl.DateTimeFormat('sv-SE', {
   timeZone: KST_TIME_ZONE,
@@ -840,6 +841,22 @@ export function ChatConversationView({
     return [...ordered, ...orphanActivityMessages];
   }, [visibleMessages]);
   const previewItemsByUrl = useMemo(() => new Map(previewItems.map((item) => [item.url, item])), [previewItems]);
+  const selectedChatTypeOption = useMemo(
+    () => chatTypeOptions.find((option) => option.value === selectedChatTypeId) ?? null,
+    [chatTypeOptions, selectedChatTypeId],
+  );
+  const normalizedSelectedChatTypeLabel = selectedChatTypeOption?.label?.trim() ?? '';
+  const isChatTypeReadonly = useMemo(() => {
+    if (isChatTypeSelectionLocked) {
+      return true;
+    }
+
+    if (typeof window === 'undefined') {
+      return false;
+    }
+
+    return Boolean(new URLSearchParams(window.location.search).get('sessionId')?.trim());
+  }, [isChatTypeSelectionLocked]);
   const visiblePreviewItems = useMemo(() => {
     if (!showLatestResourceOnly) {
       return previewItems;
@@ -1524,9 +1541,14 @@ export function ChatConversationView({
                 ),
               }))}
               getPopupContainer={(triggerNode) => triggerNode.closest('.app-chat-panel') ?? document.body}
-              disabled={chatTypeOptions.length === 0 || isChatTypeSelectionLocked}
+              disabled={chatTypeOptions.length === 0 || isChatTypeReadonly}
               onChange={onSelectChatType}
             />
+            {normalizedSelectedChatTypeLabel && normalizedSelectedChatTypeLabel !== '일반 요청' ? (
+              <Text type="secondary" className="app-chat-panel__composer-type-note">
+                현재 채팅유형: {normalizedSelectedChatTypeLabel}
+              </Text>
+            ) : null}
           </div>
           <div className="app-chat-panel__composer-actions">
             <div className="app-chat-panel__composer-action-buttons">