- Replace "Cancel" with "Keep conversation" in delete confirmation (Dimension 1)
- Drop font-weight 500 (medium); consolidate to 400 + 600 only (Dimension 4)
- Fix ChatInput padding from py-2.5 (10px) to py-2 (8px) (Dimension 5)
- Name 12px as sm+ token with justification for conversation list item padding (Dimension 5)
- Add noun suffix to all dropdown action labels ("Archive conversation", etc.)
- Add focal point statement to contract
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>