DSH Telemetry Redactor: Credential Redaction for Exported Telemetry Copies

`dsh-telemetry-redactor` is a community-maintained MIT-licensed plugin designed to reduce the risk of sensitive data leakage when session telemetry is transmitted externally in DeepSeek Harness (DSH). This plugin is mounted on the official telemetry waterfall, applying recursive redaction only to the outbound copies sent to the backend, while leaving the original canonical session log unchanged and without altering existing telemetry backend configurations. Its redaction scope covers three categories of content: values under high-risk key names (such as token, password), Bearer/Basic authentication information embedded in strings, and common credential patterns (such as s