SSR-first load fetches GET /api/timeline via createApiClient (auth cookie
forwarded), no query params for the global view (REQ-001), returns { timeline }
with no client-side fetch (REQ-002); 401 -> /login, any other non-ok ->
error(status, getErrorMessage(...)), never raw JSON, no PII logged (REQ-022).
The page renders <TimelineView> under the layout's <main>. Adds the Zeitstrahl
nav link (desktop + mobile) and 'timeline' to the eslint routes boundary
allow-list so the route may import the domain.
Refs #779
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
