Audit fixes: data-loss, security, performance, UX + new features
Comprehensive audit pass across the JS frontend and Python backend.
Bugs / correctness:
- Swap & restore now pre-save current state (hash-deduped) so unsaved
edits aren't lost when swapping/restoring, incl. rapid double-swap
- Unify captureSnapshot/captureNodeSnapshot into _captureCore; node
captures now update the dedup hash (no duplicate auto-snapshot after)
- Cycle guard in getDisplayPath; Ctrl+S ignores text fields and the
other-workflow view; tolerant API error parsing; prompt default pre-fill
Security / robustness (backend):
- Validate workflowKey against path traversal (reject ./.. + containment)
- Generic 500 messages (no exception-string leak), logged server-side
- Request body-size cap + migrate record cap
- Atomic writes (temp file + os.replace) on all write paths
Performance / memory:
- /list omits base64 thumbnails (hasThumbnail flag, lazy-loaded client-side)
- LRU-bounded previous-graph cache; persistent (prune+LRU) SVG cache
- Incremental in-place updates for lock/note instead of full list rebuild
UX / docs:
- Busy-op feedback, named-delete confirm, relative timestamps
- README: remove disabled branching feature, fix version badge & storage paths
Features:
- Export / Import snapshots (export route + reuse migrate)
- Storage-usage display (usage route + footer label)
- Pause auto-capture toggle
- Age-based retention (maxAgeDays setting + prune param)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ethanfel
0d1415fca4