Automate VS Code Marketplace publishing

[JoviDeCroock]

Summary

• version the private VS Code extension through the existing Changesets release PR
• detect unpublished Marketplace versions and publish the exact packaged VSIX from the npm staging flow
• authenticate with Microsoft Entra workload identity federation instead of a long-lived PAT
• package and integrity-check the extension in CI, including its changelog

Release setup required

Before this can leave draft, configure VSCE_AZURE_CLIENT_ID and VSCE_AZURE_TENANT_ID on the protected npm environment, add the matching GitHub OIDC federation to the Entra application, and grant its service principal access to Marketplace publisher 0no-co.

The npm stage and Marketplace publish cannot be atomic. The release runbook documents recovery when Marketplace publishing fails after npm staging.

[changeset-bot]

🦋 Changeset detected

Latest commit: 88c6565

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
vscode-graphqlsp	Patch

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