dsh-outlook: Zero-Credential Driven Classic Outlook for Windows

The `dsh-outlook` plugin for DSH Harness is designed exclusively for Windows environments, using COM interfaces to directly control local desktop Outlook without API registration or credential storage. It provides 18 tools covering mail, calendar, and contact management, supporting automatic reading and outbound operations that require manual confirmation. Suitable for permission-restricted enterprise environments, the plugin uses a three-layer security mechanism to ensure outbound content is human-reviewed, enabling secure automated office workflows.