Delete Unused Sources

Detect and remove unused source files in the project, then update README.md accordingly.

Instructions

1. Analyze project structure to identify:

   • Unused components
   • Unused utility functions
   • Unused stylesheets
   • Unused images and assets
   • Dead code

2. Check reference status of each file:

   • Track imports/exports
   • Verify actual usage
   • Consider references from test files