Test runs from the repo root were picking up every git worktree under .claude,
running 648 tests across 102 files instead of 322 across 34. That made results
misleading rather than just noisy: a failure in an unrelated worktree showed up
as a failure here.
Ignores the directory too. Only settings.local.json was listed, while rules.md
stays tracked.
Add .oxfmtignore to skip generated bindings and wasm-pack output.
Add npm format script, update DEVELOPMENT.md for Vite+ toolchain,
and format all non-generated files with oxfmt.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>