dsh-malware-audit: An AST-Based Malicious Intent Detection Plugin

`dsh-malware-audit` is a security plugin for DeepSeek Harness (dsh) that detects malicious intent in plugins through static code analysis (AST), rather than relying on signature databases. It must be enabled in the configuration after installation and supports both manual scans and scheduled scans. Scanning is limited to source files and is resource-constrained. If critical issues are found and automatic isolation is enabled, the plugin will be removed. This tool is intended to assist in identifying potential risks, not to fully replace antivirus software.