- APIClient: generate and persist a stable device UUID (jarvis.device.id
in UserDefaults); attach as X-Jarvis-Device-Id header on every request
- Add markStoryRead / markStoryUnread — POST/DELETE /stories/:id/read with
device_id, read_at, and source fields
- Wire both calls into all three read-toggle sites: SignalFeedView,
ArticleReaderView, StoryDetailView
- Add postVoid helper for fire-and-forget POST calls (no response body needed)
- Pass include_read param on stories fetch for future server-side filtering
- CacheMaintenance: recentHours 84→72 (mirrors backend 72h story window);
markerHours 96→192 so read suppression survives a full weekly news cycle
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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