- Move tito update → tito system update
- Move tito logo → tito system logo
- Remove tito grade (use tito nbgrader instead)
- Add first-run welcome message for new users
- Update demo scripts and docs for new command paths
- Update all repository references to point to harvard-edge/cs249r_book
- Fix Binder URLs to include tinytorch/ path prefix
- Fix Colab URLs to include tinytorch/ path prefix
- Update marimo-badges.js with correct repo and path
- Fix dataset documentation URLs
- Update module ABOUT.md files with correct source links
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