- Rename extension from Shelf to "Read it later"
- Add reminder settings: highlight and pin overdue unarchived items
- Add auto-delete with a hard safety rule requiring its period to exceed the reminder period
- Add cross-device sync via chrome.storage.sync (lightweight per-item metadata, no thumbnails)
- Add light/dark/system theme support
- Fix list-view Archive/Delete button alignment (card-perf wasn't filling the row)
- Add "Worth a second look" spotlight: proactively resurfaces old, forgotten items with automatic backoff so repeatedly-ignored items are shown less often, never permanently
stefwill