feat: reorganize utilities directory for architectural compliance

- Reduce src/utilities main directory from 23 to 7 files (70% reduction)
- Create subdirectories: colors/ (5 files), validation/ (4 files), ticks/ (4 files), text/ (3 files)
- Maintain FPM build compatibility and 100% test pass rate
- Achieve compliance with 20-file soft limit per directory
- Preserve all utility functionality while improving organization

Author: krystophny