feat: P10(#3) 환수 보험사자료 업로드 — 보험사 통보 기반 chargeback 인입 (PL 자율진행)

incar '환수보험사자료 업로드' 대응. GA는 LAPSE 계약 기반 자동환수만 있고 보험사가
통보한 환수자료(증권번호+환수금액)를 직접 인입하는 경로가 없던 갭. 신규 테이블 없이
기존 chargeback(V6) 재사용.

- DB(V113): 메뉴 CHARGEBACK_DATA(환수자료관리, GRP_SETTLE, /settle/chargeback-data)
  + 권한 READ/CREATE/EXPORT + 역할부여.
- core: ChargebackUploadExcelVO(@ExcelColumn 증권번호/환수금액/실효월/환수율) +
  ChargebackResp/SearchParam + ChargebackMapper.selectList/countByCondition/
  existsByContractAndMonth + ContractMapper.selectByPolicyNo(contract_date 포함).
- api: ChargebackUploadService.upload(settleMonth,file) — ExcelService.importLargeExcel
  로 SAX 파싱, policy_no→contract/agent 해소(미존재=에러행), 중복(contract+월) skip,
  실효월 YYYYMM→경과월 변환(ChronoUnit), ChargebackVO status=NEW·remain=cb_amount
  insertBatch. ChargebackService.list/export. ChargebackController(/api/chargebacks
  /upload, GET 목록, export).
- frontend: ChargebackData 화면(정산월+파일 업로드, 결과 성공/스킵/에러행 표시, AG Grid
  목록 합계행, 엑셀) + api/chargeback.ts + App 라우트.

검증: build SUCCESSFUL, Flyway V113(schema v113). 라이브 업로드 e2e — 정상 2건 INSERT
(NEW, remain=cb_amount) + 미존재 증권번호 1건 에러행 리포트 + 중복 skip, GET 목록 200,
경과월 변환 동작 확인. 테스트 chargeback 전건 정리. 스펙 docs/DOMAIN_GAP_P10.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ga-common/src/main/resources/db/migration/V113__환수자료_메뉴.sql

@@ -0,0 +1,59 @@
+-- V113: 환수자료관리 메뉴/권한 등록 (P10 §5)
+--       신규 테이블 없음 — 기존 chargeback 테이블 재사용.
+--       GRP_SETTLE 하위 PAGE: CHARGEBACK_DATA (sort_order 110, HQ_SETTLE=100 다음)
+--       권한: READ / CREATE / EXPORT
+--       역할: SUPER_ADMIN·ADMIN 전체, MANAGER READ 만
+--       모든 INSERT 멱등 (ON CONFLICT DO NOTHING / WHERE NOT EXISTS)
+
+-- ============================================================
+-- 1. 메뉴 INSERT: CHARGEBACK_DATA (GRP_SETTLE 하위 PAGE)
+-- ============================================================
+
+INSERT INTO menu (parent_menu_id, menu_code, menu_name, menu_type, menu_path, component_path, menu_level, sort_order)
+SELECT p.menu_id, x.code, x.name, 'PAGE', x.path, x.cmpt, 2, x.sort
+FROM menu p
+JOIN (VALUES
+    ('CHARGEBACK_DATA', '환수자료관리', '/settle/chargeback-data', 'settle/ChargebackData', 110)
+) AS x(code, name, path, cmpt, sort)
+ON p.menu_code = 'GRP_SETTLE'
+WHERE NOT EXISTS (SELECT 1 FROM menu WHERE menu_code = x.code);
+
+-- ============================================================
+-- 2. 메뉴 권한 항목 등록 (READ / CREATE / EXPORT)
+-- ============================================================
+
+INSERT INTO menu_permission (menu_id, perm_code, perm_name, sort_order)
+SELECT m.menu_id, p.code, p.name, p.sort
+FROM menu m
+CROSS JOIN (VALUES
+    ('READ',   '조회', 10),
+    ('CREATE', '등록', 20),
+    ('EXPORT', '엑셀', 60)
+) AS p(code, name, sort)
+WHERE m.menu_code = 'CHARGEBACK_DATA'
+ON CONFLICT (menu_id, perm_code) DO NOTHING;
+
+-- ============================================================
+-- 3. 역할별 권한 부여
+-- ============================================================
+
+-- SUPER_ADMIN / ADMIN — 전체 권한 (READ / CREATE / EXPORT)
+INSERT INTO role_menu_permission (role_id, menu_id, perm_code, is_granted)
+SELECT r.role_id, mp.menu_id, mp.perm_code, 'Y'
+FROM role r
+CROSS JOIN menu_permission mp
+JOIN menu m ON m.menu_id = mp.menu_id
+WHERE r.role_code IN ('SUPER_ADMIN', 'ADMIN')
+  AND m.menu_code = 'CHARGEBACK_DATA'
+ON CONFLICT (role_id, menu_id, perm_code) DO NOTHING;
+
+-- MANAGER — READ 만
+INSERT INTO role_menu_permission (role_id, menu_id, perm_code, is_granted)
+SELECT r.role_id, mp.menu_id, mp.perm_code, 'Y'
+FROM role r
+CROSS JOIN menu_permission mp
+JOIN menu m ON m.menu_id = mp.menu_id
+WHERE r.role_code = 'MANAGER'
+  AND mp.perm_code = 'READ'
+  AND m.menu_code = 'CHARGEBACK_DATA'
+ON CONFLICT (role_id, menu_id, perm_code) DO NOTHING;