#1196: Improve OAS examples for non-deprecated APIs

[reinkrul]

Fixes #1196

Summary

• Added missing example / examples fields to properties and response bodies across all non-deprecated API specs (auth/v2, auth/iam.partial, vdr/v2, vcr/vcr_v2, discovery/v1, monitoring/v1)
• Fixed incorrect examples (e.g. UserDetails.id was an array instead of a string; TokenResponse schema example was incomplete; ServiceActivationRequest.registrationParameters used an inline YAML string instead of a proper object)
• Added named examples (DPoP, Bearer, pending) on TokenResponse response content blocks instead of a single schema-level example
• Updated descriptions where the example implied a specific format that isn't required (e.g. UserDetails.id)

Test plan

• Review rendered examples in Swagger UI / ReadTheDocs
• Verify no YAML syntax errors (yamllint or OAS validator)

🤖 Generated with Claude Code

[qltysh]

Coverage Impact

⬇️ Merging this pull request will decrease total coverage on master by 0.03%.

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