Concurrent requests for the same course's thumbnail (e.g. the
Precompute background scan overlapping an ordinary page load) shared
fixed candidate filenames, so one request's cleanup could delete a
temp file the other was still using, crashing with ENOENT. Candidate
filenames are now unique per call.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
- Auto-play next lesson on end, with a cancelable countdown and a
Settings toggle (default on).
- Grid-view course cards show a small progress ring (checkmark at
100%) instead of a separate bar.
- Duplicate Lesson Files: scans within each course/folder for media
files that look like the same lesson downloaded twice, with per-file
delete and a shared ignore list with Duplicate Courses.
- Auto-generated cover art now samples a few early candidate frames
and keeps the largest JPEG, favoring an intro title card over a
blank fade-in or a plain presenter frame.
- Settings -> "Regenerate Thumbnails" re-runs that logic for every
course with an auto-generated thumbnail (never touches manual
covers), so already-cached thumbnails can pick up the improvement.
- Add .gitignore for __pycache__/.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
- Favorites: star toggle on course rows, the course page, and a new
dashboard card; rebased on rename/move, backed up/restored, and
caught by stale-reference cleanup (also fixed a pre-existing gap
where favorites.json wasn't in the backup file list).
- Storage Usage: click a folder row to drill into its contents one
level at a time, with a Back button.
- Lesson player: added ,/. (speed step), [/] (prev/next lesson), and
F (fullscreen) keyboard shortcuts.
- Settings: a CHANGELOG.md-backed "What's New" list, since VERSION
alone only ever shows the current build.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
rmsitzandClaude Sonnet 5