Add CLI telemetry details page

[JamesNK]

For Aspire 13.2

[Copilot]

Pull request overview

Adds a new reference documentation page describing Microsoft-collected Aspire CLI telemetry and links it into the CLI reference sidebar for Aspire 13.2.

Changes:

• Added a new MDX docs page detailing CLI telemetry scope, opt-out instructions, disclosure, and collected data points.
• Added a new “Microsoft telemetry” entry under the CLI reference sidebar linking to the new page.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/frontend/src/content/docs/reference/cli/microsoft-collected-cli-telemetry.mdx	New CLI telemetry documentation page (opt-out + data points).
src/frontend/config/sidebar/reference.topics.ts	Adds the new telemetry page to the CLI reference navigation.

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[mitchdenny]

Documentation Testing Summary

Tested the Microsoft-collected CLI telemetry documentation using Aspire and the doc-tester skill.

✅ Verified Working

• Page renders correctly at /reference/cli/microsoft-collected-cli-telemetry/
• CLI version 13.2 matches the documentation claims (tested with aspire --version: 13.2.0-preview)
• First-run disclosure message appears correctly when running CLI in fresh environment
• ASPIRE_CLI_TELEMETRY_OPTOUT environment variable is recognized by the CLI
• Internal link to /reference/cli/overview/ works correctly

🔧 Fix Applied

• Fixed PowerShell syntax: removed extra space before = in $env:ASPIRE_CLI_TELEMETRY_OPTOUT="true"

📝 Note for Consideration

The CLI disclosure message says users can set ASPIRE_CLI_TELEMETRY_OPTOUT to '1' or 'true', but the documentation only mentions true. You may want to update the docs to mention both values for consistency with the CLI output.

[IEvangelist]

This looks awesome, except for something's a bit off as this PR is pulling in other commits. Do you need to rebase?

[JamesNK]

@mitchdenny You merged main into this branch. Can you remove it?

[IEvangelist]

I merged this and rebased with main on the release/13.2 branch. All good.