[ peerclaw/peerclaw-agent ] chore(deps): bump peerclaw-core to v0.4.0 Update core dependency to v0.4.0 which includes shared ACP types extracted to core/protocol/acp/ and security audit fixes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> https://github.com/peerclaw/peerclaw-agent/commit/734f0c0…