DSh Duty Separation Proof

`dsh-duty-separation-proof` is a post-hoc audit plugin in the DeepSeek Harness (DSH) ecosystem that aims to offline, deterministically prove whether a workflow complies with duty-separation policies. Built on a receipt chain, the tool verifies rules such as identity and hash binding, process ordering, mutually exclusive subjects, quorum, and receipt continuity, then generates a content-addressed compliance report. It does not support real-time control; it only provides static validation and evidence generation based on input data, without performing authorization or managing real-time state.