- API (auth-required): GET/POST/DELETE /api/saved (+/api/saved/ids), GET/POST
/api/history, POST /api/import — all FK-safe (skip ids that no longer exist).
queries.saved/saved_ids/history reuse the feed article shape.
- Frontend: reactive savedIds store (SvelteSet) + optimistic toggleSave; a Save
control on cards for signed-in users; a "Saved" view (You sheet) with its own
empty state; newly-seen items mirror to account history (cross-device); and a
one-time import folds this device's anonymous history into the account on first
sign-in. Anonymous browsing unchanged. 115 tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>