aesthetic-improvements: automated replacement of decorative cyan with steel (80/20 rule, Action 11.3.1.3)
- Created automated script (scripts/replace-decorative-cyan.py) to systematically replace decorative/informational kodo-cyan instances with kodo-steel variants
- Script intelligently preserves active/functional states, design system variants, semantic indicators, and interactive states
- Modified 85 files, replaced 145 decorative instances, preserved 47 functional instances
- No linter errors, type safety maintained
- Action 11.3.1.3 significantly advanced (total: ~302 instances replaced across ~229 files including previous batches)
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