Scan all dependencies for outdated versions and known security vulnerabilities. Uses npm audit / pip-audit / cargo audit / bundler-audit with grep-based fallbacks when dedicated tools are unavailable. Produces a prioritised, read-only report. Use when the user asks to "audit dependencies", "check for vulnerabilities", "find outdated packages", "run a dependency audit", "check npm audit", "scan for CVEs in dependencies", or anything about dependency security or freshness.
