DeepSeek Harness Version-Locked Update Plugin dsh-lockstep

`dsh-lockstep` is a plugin in the DeepSeek Harness (DSH) ecosystem for strictly enforcing consistency in dependency versions. It addresses the risks of DSH’s default “floating” update strategy during release-candidate stages or in high-privilege environments by comparing local lock files with remote state and planning pinned upgrades rather than automatically updating to the latest versions. Users need to run `check`, `plan`, and `apply --write` in sequence to apply changes. The tool can be installed standalone or used as a DSH plugin, includes safety mechanisms, updates configuration files only without executing installation scripts, and supports bypassing API rate limits via `GITHUB_TOKEN`.