Add Datadog AI Setup CLI instructions for onboarding [RFC]

[johnkerl]

What does this PR do? What is the motivation?

https://datadoghq.atlassian.net/browse/OE-540

Important

Needs discussion on which products to show here

Merge instructions

Merge readiness:

• Ready for merge

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Additional notes

[github-actions]

Preview links (active after the build_preview check completes)

Modified Files

• https://docs-staging.datadoghq.com/johnkerl/ai-setup-cli/agentic_onboarding/setup

[johnkerl]

@aaronddog @anediaz re link preview above I believe our next step is deciding which products to show when.

The following (draft) is the list of all products supported by the AI Setup CLI -- too many.

[aaronddog]

@aaronddog @anediaz re link preview above I believe our next step is deciding which products to show when.

The following (draft) is the list of all products supported by the AI Setup CLI -- too many.

I

@aaronddog @anediaz re link preview above I believe our next step is deciding which products to show when.

The following (draft) is the list of all products supported by the AI Setup CLI -- too many.

I think RUM, Error Tracking, PA and Studio should be included here. Decisions for the rest of the products ultimately rest with the relevant product teams

[aaronddog]

@aaronddog @anediaz re link preview above I believe our next step is deciding which products to show when.
The following (draft) is the list of all products supported by the AI Setup CLI -- too many.

I

@aaronddog @anediaz re link preview above I believe our next step is deciding which products to show when.
The following (draft) is the list of all products supported by the AI Setup CLI -- too many.

I think RUM, Error Tracking and PA should be included here. Decisions for the rest of the products ultimately rest with the relevant product teams

Nit: Some of the identifiers in the documentation and the CLI readme itself are using snake_case - for consistency, I think they should also be using kebab-case

[maycmlee]

Just a small suggestion

[maycmlee]

I'd suggest either making this edit:

Suggested change

	1. Run the following command, replacing `<PRODUCT>` with the identifier for the product you want to set up:
	1. Run the `npx` command, replacing `<PRODUCT>` with the identifier for the product you want to set up:

or moving the table to after the command.