dsh-macos-calendar: macOS Calendar Integration Plugin for DeepSeek Harness

The DeepSeek Harness (DSH) plugin dsh-macos-calendar is a host-side plugin that uses AppleScript and EventKit to provide agents with true macOS calendar integration, enabling them to create, query, and delete system calendar events. It runs within the DSH Web process and does not require frequent approvals. When using it, ensure that the Node.js version is >= 22 and grant automation permissions. After installation, agents can invoke tools via natural language to manage schedules. Note the dependency declarations required in Cordis 4 environments and considerations related to date-string parsing.