reviewlisted

Review the code changes specified by: $ARGUMENTS If no argument given, review all staged changes (`git diff --cached`). If nothing is staged, review the last commit. Focus on: - **Bugs** — logic errors, off-by-ones, null/undefined risks - **Security** — injection, auth issues, secret exposure - **Style** — naming, dead code, overly complex logic - **Edge cases** — empty inputs, concurrency, error paths