dsh-cover-calc: Sum Insured Calculation

The DeepSeek Harness (DSH) plugin `dsh-cover-calc` is designed to address home insurance planning needs through local computation. Maintained by the developer `uckkk`, it is built with Node.js and has no network dependencies. It allows users to generate home insurance planning solutions based on parameter inputs, making it suitable for developers who require offline or lightweight solution generation. Once installed, its tools can be invoked directly within a session. As an open-source tool under the MIT license, users are advised to review the source code before use.