New lessons in Module 11: Spacing as First-Class Objects (lesson 04) and
Typography Tokens (lesson 05). Updated module overview with dual-ID system,
positional IDs, and new lesson links. Tutorial 11 now includes spacing and
typography steps. Module 12 lesson 01 updated with object vs spacing
extraction timing rules.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>