dsh-death-forensics: DSH Host Process Death Black Box

dsh-death-forensics is an in-process diagnostic plugin for DeepSeek Harness (dsh) that records internal information before a silent process termination. By leveraging heartbeat logs, crash stack capture, and exit-type self-checks, it provides the in-process visibility unavailable to external launchers. The plugin supports configurable heartbeat intervals and log line limits, and offers safety features including zero subprocesses, graceful degradation, and no monkey-patching. Administrators can install it via the CLI or configuration files and use the `death_forensics_report` tool to inspect logs before and after termination, making it suitable for diagnosing silent crashes and analyzing the death window.