Drew Malzahn
6461039bd7
Convert the React app from JS/JSX to TS/TSX and add type-checking: - Rename sheet-main, book, BookIndex, CharacterSheet to .ts(x) and add types (Fields, Bond, ClassEntry, Spell, CheckMap; loose SavedData for abbreviated save/share payloads) - Add globals.d.ts for CSS imports and the __BOOK_DATA__ global - tsconfig.json (strict, noEmit) and a 'typecheck' npm script - webpack: handle ts/tsx via @babel/preset-typescript - Enforce types with a tracked pre-commit hook (core.hooksPath), wired up automatically via the 'prepare' script - Update stale Justfile format target for the src/ layout Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>