Add SandBase Harness

[liyangbing]

Summary

• Add SandBase Harness to the Kubernetes & Containers section.
• Link the official repository and describe its persistent sessions, MCP bridge, governance, audit/replay, and Docker/Kubernetes execution paths.

Verification

• Official repository: https://github.com/sandbaseai/sandbase-harness
• Current release: https://github.com/sandbaseai/sandbase-harness/releases/tag/v0.3.8
• MCP installation guide: https://github.com/sandbaseai/sandbase-harness/blob/main/llms-install.md
• Official MCP Registry: https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.sandbaseai%2Fsandbase-harness

[liyangbing]

Maintainer disclosure: I maintain SandBase Harness and opened this focused entry for review. The description is intentionally limited to repository-backed capabilities; stronger isolation is deployment-dependent (Docker/Kubernetes/worker), while local execution shares the host OS user boundary.

Verification links:

• https://github.com/sandbaseai/sandbase-harness/releases/tag/v0.3.8
• https://github.com/sandbaseai/sandbase-harness/blob/main/llms-install.md
• https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.sandbaseai%2Fsandbase-harness

[liyangbing]

Documentation link correction: the current installation guide is https://github.com/sandbaseai/sandbase-harness/blob/main/docs/installation.md. The earlier docs/mcp-install.md path is not current.