Dev/annotation#19

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jinchenglee wants to merge 7 commits intokarpathy:masterfrom

jinchenglee:dev/annotation

Commits on Feb 11, 2026

feat: Add PDF support, AI chat sidebar, and enhanced reader UI
JC Li
committed

Commits on Feb 12, 2026

feat - add restore previous settings when reopen the book. Not completely working yet.
Jincheng Li
committed
feat: persist chat sidebar width and collapsed state via localStorage
JC Li
committed
feat: Add tests, chat history, dual-page PDF view
JC Li
committed

Commits on Feb 13, 2026

feat(pdf): scope arrow key navigation to viewer and add regression test
JC Li
committed

Commits on Feb 14, 2026