dsh-principal-binding-proof: Offline Proof of Anonymous Authority Binding Across DSH Execution Planes

`dsh-principal-binding-proof` is a security plugin for DeepSeek Harness (DSH) designed to verify identity consistency between the anonymous authority and the tenant within the execution chain. It detects anomalies such as authority swapping or cross-tenant confusion by inspecting data points such as hashes, versions, allowlists, and adjacency. Licensed under the MIT license, it must be installed and uses the `verify` command to perform offline validation of evidence files, making it suitable for scenarios that require auditing and ensuring the integrity of the evidence chain.