Fix CI typecheck: point contracts types to source and remove dead code

- Point @t3tools/contracts type exports to ./src/index.ts instead of
  generated .d.cts/.d.mts files that only exist after build
- Remove unused useGitState.ts that imported missing @tanstack/react-query

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
74f6ce8600Julius Marminge committed on 2/11/2026, 8:06:58 PMparentd6437a7
2 files changedLine totals unavailable