P0 blockers:
- Fix migration numbering conflict and duplicate indexes
- Change comments.post_id FK to ON DELETE CASCADE
- Restrict public post detail endpoint to published posts only
- Fix rate-limiting IP extraction and fallback to ConnectInfo
- Harden HTML sanitizer: deny unknown URL schemes, restrict data URIs
- Remove session token from login response body
- Enforce image pixel/dimension limits on upload and serving
P1 high-risk:
- Validate uploads by magic bytes and decode GIF/WebP
- Add pagination/rate-limiting to search, tag posts, and comments
- Make first-admin registration and slug uniqueness check atomic
- HTML-escape comment author fields
- Improve HTML minify cache key and skip admin/error responses
- Add mobile navigation menu
P2 accessibility/quality:
- Associate form labels with inputs
- Key PostDetail article by slug to re-init scripts on navigation
- Improve image viewer keyboard accessibility
- Make theme toggle SSR-friendly and add aria-label
- Invalidate slug 404 cache on create and pending count on new comment
- Deduplicate tags case-insensitively
P3 cleanup:
- Remove unused tower-http dependency, expand make clean
- Configure DB pool timeouts and verified recycling
- Run background cleanup tasks immediately on startup
- Use SHA-256 for stable disk cache keys
- Log DB errors with Display instead of Debug
- Update README migration instructions
All tests pass (321), clippy clean, dx check clean.
- Add tests for sanitizer, mime_to_ext, clean_tags, Theme::toggle
- Tighten assertions in highlight, markdown, post status classes
- Add boundary and XSS cases for comments, slug, rate_limit, webp
- Update Cargo.lock for serial_test dev-dependency
Previously row_to_post_full() ignored the stored content_html and
re-rendered markdown with render_markdown_enhanced() on every read,
triggering expensive ammonia sanitization (aho_corasick accounted for
87% CPU in flame graph).
Now reads content_html and toc_html directly from the database row.
Falls back to render_markdown_enhanced() only for legacy posts where
content_html is NULL.
- Move posts.rs (891 lines) to posts/ with 11 submodules
- Extract shared tag sync logic into helpers::sync_tags
- Extract tag cleaning into helpers::clean_tags
- All external import paths unchanged via mod.rs re-exports
- Zero behavioral changes, pure structural refactor
