Progress

• Started 2026-04-16: opened skill guidance and diffed legacy/current with-react.ts.
• Read local learnings/docs; ruled out fake chunking recovery and nonexistent withDOM recovery.
• Patched packages/slate-react/src/plugin/with-react.ts to restore the Android pending-selection compat branch.
• Added focused package test packages/slate-react/test/with-react-contract.tsx.
• Verified the new focused test passes.
• Broader react-editor-contract.tsx and package typecheck are currently blocked by unrelated existing editable.tsx symbols: setSimpleTextDomSelection, isRedoHotkey, isUndoHotkey.