- Replace Card, Alert, and Separator components with retro-styled div elements
- Update DatabaseManager with retro-card styling and border-based design
- Refactor health status display to use styled Badge components instead of text
- Remove unused icon imports (Server, FileText) from DatabaseManager
- Clean up inline comments and unnecessary whitespace throughout components
- Simplify error handling by removing redundant console.error statements
- Update Sidebar, SystemConfig, Account, AdminDashboard, and other pages with consistent retro styling
- Apply uppercase font styling and monospace typography to match retro-futuristic theme
- Consolidate component structure across all pages for visual consistency
- Improve code readability by removing excessive blank lines and comments
- Add `disabled={uploading}` prop to cancel button to prevent interaction during upload
- Remove duplicate button group that was causing redundant UI elements
- Ensure consistent button state management during file upload operations
lintsinghua