Reduce principles.md from 158 to 73 lines:
- Remove duplicates (atomic_commits, tdd, deviation_rules)
- Remove version drag from claude_automates
- Keep core orientation: solo dev model, plans are prompts,
scope control, ship fast, anti-enterprise
Add principles.md to 9 core commands so Claude always
understands what GSD is.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>