docs: relabel UX restructure epic as EPIC-21 (#2190)
The UX restructure pages added in 4f2e67c used EPIC-19, which already names Backup & Restore.
Existing Backup & Restore EPIC-19 references are unchanged.
Co-Authored-By: Claude product-architect <noreply@anthropic.com>
docs: EPIC-19 UX restructure architecture (ADR-038..040, route map, planned API contracts)
- ADR-038 Information Architecture v2: sidebar-only navigation, shared route map + NavConfig,
kept URLs with permanent vCard/iCal URLs, reachability and click-counting rules
- ADR-039 One Money Service: single Left to spend with strict verdict, percentage grants on
listed items, closed label registry, no schema change
- ADR-040 System Events: metadata v1 params, write-time de-dup incl. A->B->A, data-only backfill,
display collapse, delete nothing
- Route-Map page from routemap.json with owner decisions 2.0 #3/#24 applied
- API-Contract: 18 planned contracts (+2a) marked Planned - EPIC-19
- Deviation Log rows: Schema diary_entries (invoice_created, NULL metadata, invoice_deposit),
API-Contract sourceEntityType, ADR-014 autoReschedule persistence
Co-Authored-By: Claude product-architect <noreply@anthropic.com>
docs: add Style Guide wiki page (Story 12.5)
Comprehensive design system reference covering:
- Design token architecture (3-layer system explanation)
- Full Layer 1 color palette with hex values (gray, blue, red, green)
- All Layer 2 semantic tokens with light/dark values and usage
- Shadow scale (light + dark variants)
- Typography: font family, sizes (2xs-4xl), weights
- Spacing tokens (4px grid, 0-64px)
- Border radius tokens (sm, md, lg, circle, full)
- Transition tokens (fast, normal, medium, slow + composites)
- Z-index scale (dropdown, overlay, sidebar, modal)
- Component patterns: token usage, badges, form inputs, buttons, NavLink
- Dark mode implementation guide: ThemeContext, ThemeToggle, localStorage, system pref detection
- How to add new dark mode tokens (3-step process)
- Brand identity: Logo component, favicon, color identity
Updated Home.md index to link to Style Guide.
Co-Authored-By: Claude ux-designer (Opus 4.6) <noreply@anthropic.com>
docs: initialize wiki with architecture, ADRs, and placeholder pages