feat: daily briefing frontend — view, setup wizard, settings tab, nav
- BriefingView: soft chat UI with conversation history dropdown, SSE
streaming via chat store, manual refresh trigger, today/past conv toggle
- BriefingSetupWizard: 4-step first-time setup overlay (welcome →
locations → office days → RSS feeds)
- SettingsView: Briefing tab with enable toggle, location geocoding,
office day picker, slot toggles, RSS feed management, notifications
- AppHeader + router: /briefing route and nav link (desktop + mobile)
- client.ts: briefing types and API functions (config, feeds, convs,
geocode, trigger)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
bvandeusen
1686289af4