refactor: 초대장 생성/상세조회 요청, 응답 DTO 수정 및 초대장 엔티티 추가 #111

All 64 tests pass in 2s

31 files ±0 31 suites ±0 2s ⏱️ ±0s
64 tests ±0 64 ✅ ±0 0 💤 ±0 0 ❌ ±0
66 runs ±0 66 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit 44d3d92. ± Comparison against earlier commit c159d01.