링크결제 분리승인 페이지 다국어 지원 추가

- 분리승인 상세, 성공, 실패 페이지 현지화
- 기간연장 및 링크중단 기능 텍스트 번역
- 에러 메시지 및 안내 문구 다국어 적용
- 거래금액, 결제상태, 유효기간 등 레이블 현지화

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

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

src/locales/en.json

@@ -1052,6 +1052,25 @@
             "merchantName": "Merchant Name",
             "customerGreeting": "Hello, {buyerName}!",
             "paymentGuideMessage": "NICEPAYMENTS Co., Ltd. is notifying you\nof the payment details.\nYou can check the details and proceed with payment by accessing the URL below.",
+            "separateApproval": "Link Payment_Separate Approval",
+            "extendPeriodNotice": "※ Extension Period: Up to 7 days, can be extended 3 times in total",
+            "linkBreakNotice": "※ Link Break: Function to close payment before expiration date, cannot be undone once broken",
+            "transactionAmount": "Transaction Amount",
+            "paymentStatus": "Payment Status",
+            "validityPeriod": "Validity Period",
+            "extendCount": "Extension Count",
+            "extendPeriod": "Extension Period",
+            "unset": "Not Set",
+            "extendPeriodAction": "Extend Period",
+            "linkBreakAction": "Break Link",
+            "noItemsSelected": "No items selected.",
+            "pleaseSelectExtendPeriod": "Please select extension period for all selected items.",
+            "allRequestSuccess": "All requests successful.",
+            "extendPeriodFailed": "Failed to extend validity period. Please check individual status.",
+            "extendPeriodFailedGeneric": "Failed to extend validity period.",
+            "linkBreakFailed": "Failed to break link. Please check individual status.",
+            "linkBreakFailedGeneric": "Failed to break link.",
+            "pleaseRetry": "Please try again",
             "resendSuccess": "Resend successful.",
             "resendFailed": "Resend failed.",
             "resendError": "An error occurred during resend.",