add scopes supported entry to protected resource metadata route

[vungle-zhongliangong]

Summary by CodeRabbit

• New Features
  • The metadata response now includes a "scopes_supported" field listing supported authentication scopes (openid, profile, email), improving clarity for clients about available authorization scopes.

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[coderabbitai]

Walkthrough

The HandleProtectedResourceMetadata function in metadata.go was updated to add a new scopes_supported field to the protected resource metadata response, listing the OpenID Connect scopes: "openid", "profile", and "email". No other logic or flow was changed.

Changes

Cohort / File(s)	Change Summary
Metadata field addition metadata.go	Added scopes_supported field with values ["openid", "profile", "email"] to the protected resource metadata response in HandleProtectedResourceMetadata.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Single-file change adding a static field to a response structure
• No control-flow or business-logic changes

Poem

🐰 A scope field hops into place,
OpenID, profile, email in chase,
Metadata now shows their light,
Quietly added, tidy and right. 🥕

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a 'scopes_supported' field to the protected resource metadata response.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 392923f and bfcaab6.

📒 Files selected for processing (1)

• metadata.go (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• metadata.go

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[github-actions]

No high-severity issues spotted; scopes metadata addition looks consistent with other endpoints.

[github-actions]

Looks good—no issues found in this change.

[tuannvm]

Neat pick, can it be configurable through env as well?