ui(design): Phase 3 - rounded tokens, min-w/min-h, stories, NavigationProgress
- rounded-[var(--radius-xl/md/lg/sm)] → rounded-xl, rounded-md, rounded-lg, rounded-sm
- Timeline: min-w-[200px] → min-w-50
- AddEquipmentView, MetadataForm: min-h-[100px] → min-h-25
- NavigationProgress: shadow-[...] → shadow-button-primary-glow
- Stories: ActivityGraph, StatCard, NotificationBell, LoadingState, ScrollArea, Skeleton, FileUploadZone
- Reduced arbitrary values from ~60+ to 11 (5 files, exceptions documented)
Co-authored-by: Cursor <cursoragent@cursor.com>