chore: 드로그 후속 자산 및 테스트 씬 정리

- 드로그 전용 무기 프리팹과 네트워크 프리팹 등록을 추가하고 관련 솔루션 및 패키지 잠금 파일을 갱신
- Drog 메인 씬 보정과 DrogSidekickAttackReview 테스트 씬을 추가해 후속 검증용 환경을 정리
- SpawnEffect가 BossBehaviorRuntimeState의 현재 대상을 참조하도록 맞추고 TMP 폰트 자산 재생성 결과를 반영

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