dsh-agent-run-logger: DeepSeek Harness Local JSONL Tracing and Viewer

dsh-agent-run-logger is a plugin for DeepSeek Harness that converts official session logs into fine-grained local JSONL trace files and provides a real-time visual viewer. It records agent runs, model steps, tool call durations, and token usage, with waterfall chart visualization support. It captures non-sensitive metrics by default, while content capture must be manually enabled. Developers can start the local viewer via an `npx` command to debug agent execution details and performance issues, but the viewer is limited to local access and does not replace official logs.