GHSA-77HF-7FQF-F227 OpenClaw skills-install-download: tar.bz2 extraction bypassed archive safety parity checks (local DoS)

Summary The tar.bz2 installer path in src/agents/skills-install-download.ts used shell tar preflight/extract logic that did not share the same hardening guarantees as the centralized archive extractor. This allowed crafted .tar.bz2 archives to bypass special-entry blocking and extracted-size...