Prepare azure.ai.agents 0.1.35-preview patch release metadata

[Copilot]

This PR prepares the next azure.ai.agents patch release by promoting the current unreleased section to 0.1.35-preview and aligning extension version metadata. It keeps scope to release-prep artifacts only.

• Release version alignment

  • Updated cli/azd/extensions/azure.ai.agents/version.txt to 0.1.35-preview
  • Updated cli/azd/extensions/azure.ai.agents/extension.yaml version to 0.1.35-preview

• Changelog release cut

  • Finalized the top changelog section as 0.1.35-preview (2026-05-29)
  • Updated links to PR references (pull/...) for consistency with existing release-link format
  • Expanded the 0.1.35-preview section to include the full set of azure.ai.agents PRs merged since the 0.1.34-preview release cut

-## 0.1.35-preview
+## 0.1.35-preview (2026-05-29)

-- [[#8353]](https://github.com/Azure/azure-dev/issues/8353) ...
+- [[#8406]](https://github.com/Azure/azure-dev/pull/8406) ...
+- [[#8403]](https://github.com/Azure/azure-dev/pull/8403) ...
+... additional merged agents-extension PR entries since 0.1.34-preview

[trangevi]

@copilot find all of the other PRs for the agents extension that have been checked in since the last release and update the changelog accordingly

[Copilot]

@copilot find all of the other PRs for the agents extension that have been checked in since the last release and update the changelog accordingly

Updated in commit c0af6e9. I expanded the 0.1.35-preview section in cli/azd/extensions/azure.ai.agents/CHANGELOG.md to include the additional agents-extension PRs merged since the 0.1.34-preview release cut.

[trangevi]

@copilot I've updated the changelog with links to all of the work done since the last release. using those links, update the changelog with details, in the same pattern as our existing changelog entries

[Copilot]

@copilot I've updated the changelog with links to all of the work done since the last release. using those links, update the changelog with details, in the same pattern as our existing changelog entri...

Updated in commit 9404e7f. I replaced the link-only items in cli/azd/extensions/azure.ai.agents/CHANGELOG.md with detailed entries using the same [[#PR]](...) description pattern as existing releases, and expanded the breaking section entries in the same style.

[Copilot]

Pull request overview

This PR prepares the azure.ai.agents extension for the 0.1.35-preview patch release by aligning version metadata and finalizing the changelog release section.

Changes:

• Bumps version.txt and extension.yaml from 0.1.34-preview to 0.1.35-preview.
• Promotes the changelog section to 0.1.35-preview (2026-05-29).
• Adds release notes and breaking-change entries for merged extension PRs since the prior release.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
cli/azd/extensions/azure.ai.agents/version.txt	Updates the extension version string.
cli/azd/extensions/azure.ai.agents/extension.yaml	Aligns published extension metadata version.
cli/azd/extensions/azure.ai.agents/CHANGELOG.md	Finalizes the release section with dated notes and PR links.

[github-actions]

📋 Prioritization Note

Thanks for the contribution! The linked issue isn't in the current milestone yet.
Review may take a bit longer — reach out to @rajeshkamal5050 or @kristenwomack if you'd like to discuss prioritization.

[trangevi]

@copilot there were two more recent changes added, update the changelog to capture them

[Copilot]

@copilot there were two more recent changes added, update the changelog to capture them

Updated in commit 9368bb0. I added the two additional recent agents-extension changes to cli/azd/extensions/azure.ai.agents/CHANGELOG.md with detailed entries in the existing changelog format (PRs #8441 and #8482).

[trangevi]

/check-enforcer override