Replace eslint with biome

[dwjohnston]

Replace the current eslint setup with biome for linting.

[dwjohnston]

@claude

[dwjohnston]

@claude

[claude]

Claude finished @dwjohnston's task in 1m 56s —— View job • claude/issue-267-20260520-2355 • Create PR ➔

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Replacing ESLint with Biome

• Gather context (read CLAUDE.md, explore current eslint setup)
• Understand the request
• Install Biome (added @biomejs/biome ^1.9.4 to devDependencies)
• Configure Biome (biome.json created with recommended rules, a11y, and formatter config)
• Update package.json scripts (lint now runs biome check .)
• Remove ESLint dependencies and config files (removed eslint, eslint-config-next, and .eslintrc.json)
• Commit and push changes

Note: Run npm install after checking out the branch to update package-lock.json with the new Biome dependency and remove the old ESLint packages.

Changes made:

• package.json: replaced eslint ^8 + eslint-config-next 14.2.4 with @biomejs/biome ^1.9.4; updated lint script to biome check .
• biome.json: new config with recommended linting rules, accessibility (a11y) rules, and formatter settings matching common JS conventions (2-space indent, double quotes, trailing commas)
• .eslintrc.json: deleted