[BE] feat: AdminStageV1Controller에 공연 단건 조회 기능 추가 (#855) #738

All 660 tests pass in 31s

194 files ±0 194 suites ±0 31s ⏱️ ±0s
660 tests ±0 660 ✅ ±0 0 💤 ±0 0 ❌ ±0
673 runs ±0 673 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit c7a5b65. ± Comparison against earlier commit e2adf38.