Add comprehensive i18n localization to transaction UI components

- Localize 23 transaction UI component files
- Add 150+ translation keys to ko.json and en.json
- Organized translations under transaction namespace:
  * transaction.bottomSheet - Bottom sheet modals
  * transaction.sections - Section titles
  * transaction.fields - Field labels (90+ keys)
  * transaction.cancel - Cancellation flows
  * transaction.handWrittenIssuance - Manual issuance forms
  * transaction.list - List actions

Updated files:
- Bottom sheets: escrow-mail-resend, cash-receipt-purpose-update
- Sections: billing-info, part-cancel-info, detail-info, issue-info,
  escrow-info, important-info, payment-info, transaction-info,
  settlement-info, merchant-info, amount-info, cancel-bank-group,
  cancel-password-group
- Lists: list-item, billing-list, cash-receipt-list
- Cancel flows: all-cancel, part-cancel, prevent-bond
- Issuance: hand-written-issuance-step1, hand-written-issuance-step2

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

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

src/entities/transaction/ui/all-transaction-part-cancel.tsx

@@ -3,6 +3,7 @@ import { AllTransactionCancelInfoResponse } from '../model/types';
 import { NumericFormat } from 'react-number-format';
 import { AllTransactionCancelSectionPasswordGroup } from './section/all-transaction-cancel-section-password-group';
 import { AllTransactionCancelSectionBankGroup } from './section/all-transaction-cancel-section-bank-group';
+import { useTranslation } from 'react-i18next';
 
 export interface AllTransactionPartCancelProps extends AllTransactionCancelInfoResponse {
   serviceCode: string;
@@ -63,6 +64,7 @@ export const AllTransactionPartCancel = ({
   totalCancelAmount,
   setTotalCancelAmount
 }: AllTransactionPartCancelProps) => {
+  const { t } = useTranslation();
   const [cancelTotalCancelAmountReadonly, setCancelTotalCancelAmountReadonly] = useState<boolean>(true);
   const [cancelSupplyAmountDisabled, setCancelSupplyAmountDisabled] = useState<boolean>(false);
   const [cancelGoodsVatDisabled, setCancelGoodsVatDisabled] = useState<boolean>(false);
@@ -180,20 +182,20 @@ export const AllTransactionPartCancel = ({
       <div className="amount-info">
         <ul className="amount-list">
           <li className="amount-item">
-            <span className="label">·&nbsp;&nbsp;총 잔액</span>
+            <span className="label">·&nbsp;&nbsp;{t('transaction.fields.totalBalance')}</span>
             <span className="value">
               <NumericFormat
-                value={ remainAmount } 
+                value={ remainAmount }
                 thousandSeparator
                 displayType="text"
               ></NumericFormat>
             </span>
           </li>
           <li className="amount-item">
-            <span className="label">·&nbsp;&nbsp;총 취소금액</span>
+            <span className="label">·&nbsp;&nbsp;{t('transaction.fields.totalCancelAmount')}</span>
             <span className="value">
               <NumericFormat
-                value={ totalCancelAmount } 
+                value={ totalCancelAmount }
                 displayType="input"
                 allowNegative={ false }
                 max={ remainAmount }
@@ -215,19 +217,19 @@ export const AllTransactionPartCancel = ({
             <thead>
               <tr>
                 <th className="header-empty"></th>
-                <th className="header-balance">잔액</th>
-                <th className="header-cancel">취소금액</th>
+                <th className="header-balance">{t('transaction.cancel.partCancel.balance')}</th>
+                <th className="header-cancel">{t('transaction.cancel.partCancel.cancelAmount')}</th>
               </tr>
             </thead>
             <tbody>
               <tr>
-                <td className="row-label">과세액</td>
+                <td className="row-label">{t('transaction.cancel.partCancel.taxableAmount')}</td>
                 <td className="row-balance">
                   <NumericFormat
-                    value={ supplyAmount } 
+                    value={ supplyAmount }
                     thousandSeparator
                     displayType="text"
-                  ></NumericFormat> 
+                  ></NumericFormat>
                 </td>
                 <td className="row-cancel">
                   <NumericFormat
@@ -241,13 +243,13 @@ export const AllTransactionPartCancel = ({
                 </td>
               </tr>
                 <tr>
-                  <td className="row-label">부가세</td>
+                  <td className="row-label">{t('transaction.cancel.partCancel.taxAmount')}</td>
                   <td className="row-balance">
                     <NumericFormat
-                      value={ goodsVat } 
+                      value={ goodsVat }
                       thousandSeparator
                       displayType="text"
-                    ></NumericFormat> 
+                    ></NumericFormat>
                   </td>
                   <td className="row-cancel">
                     <NumericFormat
@@ -261,10 +263,10 @@ export const AllTransactionPartCancel = ({
                   </td>
                 </tr>
                 <tr>
-                  <td className="row-label">면세</td>
+                  <td className="row-label">{t('transaction.cancel.partCancel.taxFree')}</td>
                   <td className="row-balance">
                     <NumericFormat
-                      value={ taxFreeAmount } 
+                      value={ taxFreeAmount }
                       thousandSeparator
                       displayType="text"
                     ></NumericFormat>
@@ -281,10 +283,10 @@ export const AllTransactionPartCancel = ({
                   </td>
                 </tr>
                 <tr>
-                  <td className="row-label">봉사료</td>
+                  <td className="row-label">{t('transaction.cancel.partCancel.serviceFee')}</td>
                   <td className="row-balance">
                     <NumericFormat
-                      value={ serviceAmount } 
+                      value={ serviceAmount }
                       thousandSeparator
                       displayType="text"
                     ></NumericFormat>