fix(clawsec-suite): use release metadata for heartbeat version check (#173)

* fix(clawsec-suite): stop false heartbeat update alerts

* chore(deps): remediate npm audit vulnerabilities

* docs(heartbeats): harden release lookup and fallback behavior

* chore(skills): remove prompt-agent

* chore(clawsec-suite): bump version to 0.1.5

* fix(ci): skip removed skills in skill-release validation

README.md

@@ -442,7 +442,6 @@ npm run build
 │   ├── clawsec-clawhub-checker/ # 🧪 ClawHub reputation checks
 │   ├── clawtributor/           # 🤝 Community reporting skill
 │   ├── openclaw-audit-watchdog/ # 🔭 Automated audit skill
-│   ├── prompt-agent/          # 🧠 Prompt-focused protection workflows
 │   └── soul-guardian/         # 👻 File integrity skill
 ├── utils/
 │   ├── package_skill.py       # Skill packager utility