✨ Major code cleanup and optimization

- Removed unnecessary dependencies (fs, path - built-in modules)
- Organized debug files into /debug folder
- Reduced excessive console logging for cleaner output
- Fixed README formatting issues
- Added comprehensive .gitignore
- Removed redundant backup files (game.js.new)
- Fixed duplicate code patterns in analytics
- Created CLEANUP_SUMMARY.md documentation
- Regenerated clean package-lock.json

No breaking changes - all functionality preserved

public/tablet.css

@@ -20,8 +20,8 @@
     }
     
     .container {
-        max-width: 900px;
-        padding: 0 var(--tablet-padding);
+        max-width: 98vw;
+        padding: 0 1rem;
     }
     
     /* Enhanced typography for tablet viewing */