dsh-frontier-repro: DeepSeek Harness Frontier Signals and Reproduction Evidence Gating

`dsh-frontier-repro` is a workflow plugin for DeepSeek Harness, designed to bridge the gap between "signal" and "auditable reproduction" in frontier AI tracking. It collects signals from multiple curated sources, filters out irrelevant information, generates versioned evidence packages, and provides three reproduction modes and protocols: exact, scaled, and behavioral. It includes command-line tools for checking status, refreshing signals, and running evaluations. The plugin does not archive full texts and is intended solely for rigorous agent developers to establish auditable reproduction workflows.