Convert transaction constants to i18n-compatible getter functions

- Convert all hardcoded constant arrays to functions accepting TFunction
- Add transaction.constants namespace with 40+ translation keys
- Update contant.ts: All exports now use get* prefix (e.g., getCashReceiptPurposeTypeBtnGroup)
- Replace ko/en properties with single name property using t() function

Updated constants:
- getAllTransactionMoidTidOptionsGroup(t)
- getAllTransactionStatusCodeBtnGroup(t)
- getAllTransactionServiceCodeOptionsGroup(t)
- getAllTransactionStatusCode(t)
- getCashReceiptPurposeTypeBtnGroup(t)
- getCashReceiptTransactionTypeBtnGroup(t)
- getCashReceiptProcessResultBtnGroup(t)
- getEscrowSearchTypeOptionsGroup(t)
- getEscrowDeliveryStatusBtnGroup(t)
- getEscrowSettlementStatusBtnGroup(t)
- getBillingSearchTypeOptionsGroup(t)
- getBillingRequestStatusBtnGroup(t)
- getBillingProcessResultBtnGroup(t)
- getBillingPaymentMethodBtnGroup(t)

Updated components (9 files):
- Filter components: all-transaction, cash-receipt, billing, escrow
- List pages: billing, cash-receipt, escrow
- UI components: list-item, important-info-section

All constants now properly support Korean/English language switching.

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

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

src/locales/en.json

@@ -514,6 +514,46 @@
             "customerName": "Customer Name",
             "transactionConfirmation": "Transaction Confirmation"
         },
+        "constants": {
+            "all": "All",
+            "orderNumber": "Order Number",
+            "tid": "TID",
+            "approval": "Approval",
+            "approvalComplete": "Approval/Payment Complete",
+            "cancel": "Cancel",
+            "cancelShort": "Cancellation",
+            "totalCancel": "Total Cancellation/Cancel",
+            "totalCancelShort": "Total Cancellation",
+            "refund": "Refund",
+            "deposit": "Deposit",
+            "waitingDeposit": "Waiting Deposit",
+            "issueCancel": "Issue Cancel",
+            "creditCard": "Credit Card",
+            "virtualAccount": "Virtual Account",
+            "accountTransfer": "Account Transfer",
+            "accountSimpleTransfer": "Account Simple Payment",
+            "mobilePayment": "Mobile Payment",
+            "ssgMoney": "SSG Money",
+            "ssgBank": "SSG Bank Account",
+            "cultureLand": "Culture Gift Certificate",
+            "tmoneyPay": "Tmoney Pay",
+            "request": "Request",
+            "requestCancel": "Request Cancel",
+            "requestComplete": "Request Complete",
+            "issueComplete": "Issue Complete",
+            "requestFail": "Request Failed",
+            "issueFail": "Issue Failed",
+            "paymentComplete": "Payment Complete",
+            "deliveryRegistration": "Delivery Registration",
+            "deliveryComplete": "Delivery Complete",
+            "purchaseConfirm": "Purchase Confirm",
+            "purchaseReject": "Purchase Reject",
+            "refundProcessing": "Refund Processing",
+            "depositComplete": "Deposit Complete",
+            "inProgress": "In Progress",
+            "success": "Success",
+            "failure": "Failure"
+        },
         "handWrittenIssuance": {
             "step1Title": "Enter Issue Information",
             "step2Title": "Enter Issue Amount",