[StuartFerguson]

Summary

• Add client_type=user to user access tokens and client_type=client to client-credentials access tokens.
• Keep the claim access-token-only and prevent user profile claims from overriding it.
• Add token assertions and document the claim contract.

Closes #1760

Verification

• Focused token integration scenarios: 2 passed.
• Focused OIDC unit test: 1 passed.
• git diff --check passed.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-27T16:59:42.998233Z	17edcca	PR opened

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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🟢 Metrics 0 complexity · 0 duplication

Metric	Results
Complexity	0
Duplication	0

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