Fix translation key for detail section title

- Change transaction.fields.detailInfo to transaction.sections.detailInfo
- Fixes missing translation issue in account holder auth and search detail pages
- detailInfo is a section title, not a field, so it belongs in sections namespace

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/additional-service/account-holder-auth/detail-page.tsx

@@ -65,7 +65,7 @@ export const AccountHolderAuthDetailPage = () => {
                         </div>
                         <div className="detail-divider"></div>
                         <div className="pay-detail">
-                            <div className="detail-title">{t('transaction.fields.detailInfo')}</div>
+                            <div className="detail-title">{t('transaction.sections.detailInfo')}</div>
                             <ul className="kv-list">
                                 <li className="kv-row">
                                     <span className="k">{t('transaction.fields.companyName')}</span>

src/pages/additional-service/account-holder-search/detail-page.tsx

@@ -67,7 +67,7 @@ export const AccountHolderSearchDetailPage = () => {
                         </div>
                         <div className="detail-divider"></div>
                         <div className="pay-detail">
-                            <div className="detail-title">{t('transaction.fields.detailInfo')}</div>
+                            <div className="detail-title">{t('transaction.sections.detailInfo')}</div>
                             <ul className="kv-list">
                                 <li className="kv-row">
                                     <span className="k">{t('transaction.fields.accountHolder')}</span>