DSH Plugin dsh-plugin-sandbox-escalation-fix: Ignoring Invalid Sandbox Escalation Requests from Siblings or Lower Levels

`dsh-plugin-sandbox-escalation-fix` is an MIT-licensed plugin for DeepSeek Harness (DSH) 0.1.0-rc.6, designed to address the issue where models, despite already having sufficient sandbox permissions, carry invalid `sandbox_permissions` parameters, triggering `not strictly wider` errors or inadvertently entering the approval workflow. This plugin acts as a lightweight compatibility layer, normalizing parameters for tools such as `bash`, `pwsh`, `write`, and `edit` on the Host side: it automatically ignores invalid privilege escalation requests that are no higher than the current Session's permissions; if a request is indeed broader but lacks a `justification`, it automatically fills in a default