Perfect! All tests are now passing. The issue was that Vitest was trying to run test files from the .direnv directory (a Nix/direnv cache directory) which contained references to Nix store paths that don't exist in your environment.
Fixed the failing tests by updating vitest.config.ts:11-18 to exclude the .direnv directory from test discovery. The configuration now explicitly excludes common directories that shouldn't contain tests, including:
.direnv(Nix/direnv cache)node_modules,dist,cypress- Various config files
Result: All 9 test files with 165 tests now pass successfully.