[Artifacts] Add dashboard management changelog

[dinasaur404]

Summary

Adds an Artifacts changelog entry for managing namespaces, repositories, files, Git remote URLs, forks, and tokens from the Cloudflare dashboard.

Screenshots (optional)

Documentation checklist

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• The change adheres to the documentation style guide.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/assets/images/	@cloudflare/pm-changelogs, @cloudflare/product-owners
/src/content/changelog/	@cloudflare/pm-changelogs, @cloudflare/product-owners

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[dinasaur404]

/bonk review

[cloudflare-docs-bot]

Review

✅ No style-guide issues found in commit 2b0a6a2.

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[ask-bonk]

UnknownError: The operation timed out.

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[github-actions]

Preview URL: https://2b0a6a23.preview.developers.cloudflare.com
Preview Branch URL: https://artifacts-ui-changelog.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/changelog/post/2026-06-17-dashboard-management/	https://artifacts-ui-changelog.preview.developers.cloudflare.com/changelog/post/2026-06-17-dashboard-management/