refactor: 도메인명 변경 (memory -> category, moment -> staccato) #594 #525

All 238 tests pass in 6s

33 files + 6 33 suites +6 6s ⏱️ -1s
238 tests +34 238 ✅ +34 0 💤 ±0 0 ❌ ±0
255 runs +34 255 ✅ +34 0 💤 ±0 0 ❌ ±0

Results for commit dddb310. ± Comparison against earlier commit d423161.