Spec replaces /notifications with a unified /chronik page that merges ambient
archive activity (6 of 8 AuditKinds) and personal mentions/replies. Covers 11
content states across 320/768/1440px viewports, dark mode parity, row anatomy
close-ups, interaction states, WCAG contrast verification, and implementation
notes (routing, API calls, rollup logic, Svelte component structure, i18n keys).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
