Setup Biome + Ultracite

Repo/code changes: run /deslop before commit, push, PR, or merge.

• Biome linter/formatter + Ultracite opinionated preset
• Stop hook auto-fix lint/format on changed JS/TS files (skip noUnusedImports, avoid deletion loops)
• Strict: noConsole, cognitive complexity 15, noDeprecatedImports, restricted imports (moment/lodash/classnames/mobx/yup)

Steps

1. Install

bun add -D @biomejs/biome ultracite --yarn

2. Create biome.jsonc

From REFERENCE.md. Extend ultracite/biome/core + ultracite/biome/react. VCS git on. Test files re-enable noExplicitAny.