perf: SSR 테마 레이아웃 최적화#209
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- import.meta.glob({ eager: true })로 빌드 시점에 테마 번들 포함
- 동적 import 제거로 invisible 대기 시간 0ms로 개선
- themeLoadFailed 상태 및 2초 타임아웃 로직 제거
- LCP/FCP 개선, Hydration mismatch 방지
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Staging 배포 완료URL: https://dev.damoang.net
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## Summary
- import.meta.glob({ eager: true })로 빌드 시점에 테마 번들 포함
- 동적 import 제거로 invisible 대기 시간 0ms로 개선
- themeLoadFailed 상태 및 2초 타임아웃 로직 제거
- LCP/FCP 개선, Hydration mismatch 방지
## 성능 개선 효과
| 지표 | 이전 | 이후 |
|------|------|------|
| invisible 대기 시간 | 최대 2초 | 0ms |
| 테마 레이아웃 로딩 | 동적 import (클라이언트) | SSR 시점 즉시 |
| Hydration mismatch | 발생 가능 | 방지 |
## Test plan
- [x] dev.damoang.net에서 테스트 완료
- [x] 빌드 테스트 통과
- [ ] 운영 배포 후 LCP/FCP 측정
Co-authored-by: Deploy Bot <deploy@damoang.net>
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Summary
성능 개선 효과
Test plan