Add ultracite as Biome preset with husky + lint-staged

[stylessh]

Summary

• Integrates ultracite as the Biome configuration preset across the monorepo, replacing manual biome.json configs with biome.jsonc files that extend ultracite's curated rule sets (core, react, vitest)
• Adds husky pre-commit hook with lint-staged to automatically lint and format staged files on commit via biome check --write
• Auto-fixes all existing files to match ultracite's formatting conventions (spaces, semicolons, sorted imports/attributes/classes)

Test plan

• pnpm run check passes across all packages
• pnpm run lint and pnpm run format pass
• npx lint-staged runs successfully on staged files
• Pre-commit hook fires and passes on commit