Lint Setup

Set up linting and/or formatting for a repository workspace. Detects project types (JS/TS, Go, shell scripts), audits existing lint configuration for gaps, presents tool options, and installs + configures the chosen tools. Use when asked to "set up linting", "add a linter", "configure ESLint / Biome / oxlint / oxfmt / golangci-lint / shellcheck", "our project has no lint", or when a PR review flags missing lint config. For JS/TS, lets the user independently pick linters (ESLint, oxlint, Biome) and formatters (Prettier, oxfmt) — multiple tools can be set up in one go. Does NOT wire linters into git hooks — point the user to git-hooks-setup for that after this skill complet…