Polish UI across all route groups + redesign welcome page
- Welcome: split-panel layout with Sign In always above fold, feature cards, trust badges
- Release Control: dashboard, releases, promotions, approvals — design token alignment
- Security: posture, findings, scan submit, unknowns, reports — compact tables, severity badges
- Operations: ops hub, jobengine, scheduler, doctor, notifications, feeds — consistent styling
- Audit & Evidence: evidence overview, audit log, export center, replay — shimmer loading
- Setup & Admin: topology, integrations, identity, trust, system — hover lift, focus rings
- Shared: buttons, tabs, forms, colors — unified design tokens (btn-primary, tab-active, focus-ring)
- Archive 3 completed sprints (SPRINT_20260317_001/002/003)
- Add QA journey reports and route map
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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