Apply uniform design system across all routes and components:
- Consistent header pattern with gradient-text titles, dimmed subtitles
- Loader type="dots" replacing text-based loading states
- Icon + text empty/error states with Paper+glass containers
- Full STATUS_COLOR/STATUS_LABEL maps for all BugStatus values
- dayjs timestamps, Tooltip on action icons, size="sm" on badges/pagination
- Modals with overlayProps blur and gradient save buttons
- Replace left-border Papers with clean Stack headers
- Translate all remaining Indonesian UI strings to English
- New monitoring-themed SVG logo and redesigned splash screen
