Docker Manager-hardened

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (high risk: 0.80). The SKILL and SAFETY docs explicitly show the agent may pull images from untrusted registries (docker pull) and build Dockerfiles that fetch/execute remote installers via curl (e.g., the RUN curl -sSL https://install.python-poetry.org | python3
• example in SAFETY.md), so it clearly ingests untrusted third‑party content that can influence actions.