Perform a code review. Arguments: $ARGUMENTS (optional scope) - commit: Review only staged files for commit - pr [number]: Review all files changed in the current PR (or specific PR number) - all: Review the entire codebase - If no argument provided: - If in a PR branch: defaults to 'pr' - Otherwise: defaults to 'commit' Phase 1: Scope Determination 1. Determine scope based on $ARGUMENTS 2. If reviewing a PR, fetch PR details and linked issue with and Phase 2: Review 3. Run available linting tools for detected languages 4. Check against project standards from CLAUDE.md (80 char limit, whitesp…