- Remove unused showNsfwContent prop (was only used in MemoDetail to pre-reveal NSFW, which defeats the purpose)
- Inline useNsfwContent hook logic directly into MemoView.tsx (only 3 lines, no reusability benefit)
- Delete web/src/components/MemoView/hooks/useNsfwContent.ts
- NSFW content now consistently starts hidden across all pages
- Maintains same user experience: click to reveal, no toggle back

This removes unnecessary indirection and prop threading while preserving functionality.