An event id is a localStorage key, so a fix that changes one orphans every tick, note and ignore filed under it. retiredIds.ts holds an explicit table of old id -> new id, and the progress, daily and ignored stores move entries across on load and on import.
It moves rather than copies: a copy left under the old id would be carried forward again on every load and bring back a mark the reader had cleared. When both ids hold an entry, each store's own import merge decides, except that progress keeps any field only the older row held. The table starts empty; the change that moves ids adds its entries.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
