test: restrict default runs to OpenAI credentials

[seratch]

This pull request updates default example and integration runs to retain OpenAI-backed and credential-free coverage while requiring explicit execution for additional-credential providers. It also fixes DeepWiki calls after the server renamed ask_question to ask_wiki_question.

• Exclude 12 additional-credential examples from default auto runs, including the failing Runloop capabilities example. Preserve manual execution and custom skip-list overrides.
• Require explicit external-provider flags or Make targets for integration coverage. Ignore inherited enable flags, remove known external provider keys from default child environments, and reject unsupported model overrides before builds.
• Deselect unrequested external tests while preserving OpenAI adapter coverage and the strict release gate.
• Update DeepWiki tool choices and allowlists in examples, integration tests, and integration guidance.

[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 2026-10-02T05:14:36.625333Z	0a4b9f4	New commits
🔒 Security Review	✅ Completed 2026-10-02T05:13:47.021795Z	0a4b9f4	New commits

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[chatgpt-codex-connector]

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Reviewed commit: 0333905c6b

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[markstuart-oai]

Reviewed the complete diff at 0a4b9f4. Default integration runs clear inherited provider-enable flags and external keys before bootstrap/build, while explicit provider flags retain the intended routes. Collection deselects only unrequested external cases; OpenAI adapter coverage, custom example skip lists and the strict release checks remain intact. No actionable correctness or structural findings.

Validation: inspected the new regression tests and the existing runner/provider paths; all 24 exact-head hosted checks passed, including Linux/Windows tests and packaged-contract checks. Source-only review: no local tests or live provider/DeepWiki calls were run.