docs(cli): document guided plugin setup

[ericevans-nv]

Overview

Documents the guided interactive setup introduced in #358. The CLI guide now presents nemo-relay config as an end-to-end workflow, from choosing a configuration scope through optional plugin setup.

This replaces manual path and TOML examples in the Shared Configuration section with task-focused guidance so first-time users can understand what the wizard saves and what happens at each choice.

• I confirm this contribution is my own work, or I have the right to submit it under this project's license.
• I searched existing issues and open pull requests, and this does not duplicate existing work.

What changed

The guide now walks users through:

1. Choosing whether setup applies to the current project, the user account, or both.
2. Selecting the coding agents that Relay should observe.
3. Reviewing and saving the base config.toml.
4. Choosing whether to continue to the plugin editor.

It also explains that:

• config.toml stores the base agent settings.
• plugins.toml stores optional Relay component settings.
• Project and global setup use their corresponding plugin configuration, while both continues with the project plugin configuration.
• Selecting Yes opens the plugin editor.
• Selecting No, canceling the prompt, or leaving the plugin editor does not remove the saved base configuration.
• Plugin setup can be resumed with nemo-relay plugins edit or nemo-relay plugins edit --project.

User flow

nemo-relay config
  -> choose project, global, or both
  -> select coding agents
  -> review and save config.toml
  -> Configure Relay plugins now?
       -> Yes: open the plugin editor and save plugins.toml
       -> No or cancel: finish with config.toml still saved

Validation

• just docs — passed with zero errors
• Repository pre-commit hooks — passed
• No runtime behavior or public API changes

Where should the reviewer start?

Review the Interactive Setup subsection in docs/nemo-relay-cli/basic-usage.mdx, immediately before Add Model Pricing for Cost Estimates.

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

• Follow-up to fix(cli): guide setup into plugin configuration #358
• Relates to RELAY-315

[coderabbitai]

Walkthrough

Documentation update replacing the "Shared Configuration" section with an "Interactive Setup" walkthrough in the NeMo Relay CLI docs, describing the nemo-relay config wizard flow, plugin editor step, and commands to reopen plugin editing.

Changes

Documentation update

Layer / File(s)	Summary
Interactive Setup section rewrite docs/nemo-relay-cli/basic-usage.mdx	Replaces config file location listing and example TOML snippets with a step-by-step description of the nemo-relay config interactive flow, base config saving, optional plugin editor, and revisit commands (nemo-relay plugins edit, nemo-relay plugins edit --project).

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• NVIDIA/NeMo-Relay#358: Implements the CLI wizard flow (prompting to continue into the plugin editor after saving config.toml) that this documentation update describes.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title follows Conventional Commits and accurately summarizes the docs change with valid type and scope.
Description check	✅ Passed	The description covers the required overview, change details, reviewer start, and related issues, with validation notes included.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-359.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-359.docs.buildwithfern.com/nemo/relay​)