dsh-dashcam: dashcam for recording a verifiable audit ledger for DSH plugins

dsh-dashcam is an admin-security category plugin provided by odysseykernelt for DeepSeek Harness, featuring a zero-configuration dashcam that does not intercept by default. It records file read/write, outbound connections, commands, and tool calls to `~/.dsh/dsh-dashcam/ledger.jsonl`, including plugin attribution and profiled contract markings, SHA-256 hash chains, and configurable HMAC. The installation command is `dsh plugin --profile web add dsh-dashcam` and requires Node.js >= 20. Optionally, requests/grants can be stacked on the same ledger for Two-Key adjudication. It is suitable for developers who need to verify audit trails offline; please be aware of in-process observation and ledger sensitivity before installation.