- sign.blade.php: style={{}} → STYLES 상수로 Blade {{ }} 파싱 충돌 해결
- sign.blade.php, done.blade.php: 외부 API 호출 → MNG 내부 엔드포인트로 변경
- EsignPublicController: submitSignature, rejectContract, downloadDocument 추가
- routes/web.php: submit, reject, document API 라우트 추가
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>