dsh-log-triage: Let DSH locate container errors on the server itself

dsh-log-triage is a DeepSeek Harness plugin maintained by xinstart-1, belonging to the networked tools category. It exposes the `log_triage` tool to the model, which executes read-only probes on the target machine via SSH (such as `docker ps/inspect/logs/stats`, `dmesg`, `df`, `free`). After retrieving structured snapshots, it clusters error fingerprints locally and extracts the deepest chain of traceback root causes, before reading source code snippets on demand using `log_source_read`. Full logs are not fed into the context. Installation does not support bare package names; it requires a Git URL or a local tgz path, and DSH must be restarted after installation. Scheduled inspections, AI analysis, and unattended alerts are disabled by default.