heagbokat 94fff09a41 feat: infinite scroll, HEIC support, likes fix, security & backup ...

- Fix liked hearts not showing after page reload (sync useEffect in CatCard)
- Replace pagination with infinite scroll (useInfiniteQuery + IntersectionObserver)
- Add HEIC/HEIF/AVIF image support with sharp conversion to JPEG on upload
- Validate MIME type alongside file extension to prevent spoofing
- Limit caption to 500 chars; increase upload size limit to 20MB
- Delete physical file from uploads/ when post is removed (cats + admin routes)
- Add WAL journal mode and graceful shutdown (SIGTERM/SIGINT) to db
- Add rate limiter for upload endpoint (10 req / 15 min)
- Add pre-deploy backup of data.db and uploads/ to deploy.sh (keeps last 10)
- Add plan_modernization.md with ideas for future improvements

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-06-26 00:18:46 +03:00

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