[StuartFerguson]

Summary

• Restrict default OAuth flows to authorization code with PKCE, client credentials, and refresh tokens.
• Gate password, implicit, and hybrid flows behind explicit client-scoped configuration.
• Disable device authorization and remove device-code handler routing.
• Persist OpenIddict grant permissions and PKCE requirements for new clients.
• Reconcile existing applications at startup and keep the management bootstrap client client-credentials-only.
• Update integration-test legacy fixtures and add rollout documentation.

Verification

• Focused policy tests: 4 passed.
• Client registration tests: 6 passed.
• Integration projects build successfully.
• Full unit suite: 118 passed; 2 existing certificate-loader tests require unavailable PFX files in the environment.

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-06T09:51:33.091530Z	8ad6c01	PR opened

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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🟢 Metrics 19 complexity · 0 duplication

Metric	Results
Complexity	19
Duplication	0

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8ad6c01494

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