Update MCP related CLI commands in cli.md

[yczhang-nv]

Description

Closes

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Summary by CodeRabbit

• Documentation
  • Restructured and expanded the MCP section with clearer hierarchy.
  • Added a new MCP Client subsection with command usage, examples, and help summaries.
  • Enhanced Serve documentation with clearer defaults, updated examples, and a note on running workflows via the MCP front end.
  • Documented options and defaults consistently across client and serve commands, including authentication and JSON output.
  • Updated examples to reflect default host/port behavior and available endpoints.
  • Applied minor formatting tweaks for consistency and readability.

[coderabbitai]

Walkthrough

Expanded and restructured CLI documentation for MCP. Added a new Client subsection with detailed help for ping and tool (list/call). Enhanced Serve subsection with updated defaults, examples, and clarified descriptions. Adjusted examples to new host/port and endpoint. Applied minor formatting consistency updates.

Changes

Cohort / File(s)	Summary
Docs — MCP CLI client and serve updates docs/source/reference/cli.md	Promoted MCP header level; added Client subsection with nat mcp client help (ping, tool list/call, options, auth); expanded Serve subsection with clarified defaults, updated example paths/ports/endpoints; standardized default descriptions and minor formatting tweaks.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit's high-level summary is enabled.
Title Check	✅ Passed	The title uses imperative mood with “Update,” clearly describes the change to MCP-related CLI commands in the cli.md documentation, and is concise at under 72 characters.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

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• Post copyable unit tests in a comment

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Actionable comments posted: 1

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Reviewing files that changed from the base of the PR and between ec5ecc2 and 621d503.

📒 Files selected for processing (1)

• docs/source/reference/cli.md (1 hunks)

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[yczhang-nv]

/merge