- Add missing zustand dependency to package.json
- Fix unused variable errors in ToolWidgets.tsx
- Remove invalid 'white' theme comparison in claudeSyntaxTheme.ts
- Add proper TypeScript types to stores using StateCreator pattern
- Add null checks and type casting in Settings.tsx filter operations
- Add onChange handler to Switch component to suppress React warning
- Add 'check' script for TypeScript validation
These changes ensure the TypeScript build passes without errors.