Remove snapshot-only target warning

[itsjling]

Summary

• stop warning when a review target uses snapshot-only agent access
• remove the now-unused warning suppression flag
• retain and test snapshot-only access behavior
• update the CLI documentation

Testing

• pnpm run lint
• pnpm run docs:check
• pnpm run test:unit
• pnpm run test:integration
• pnpm run test:coverage
• pnpm run test:browser
• pnpm run test:platform
• node --test --test-concurrency=1 tests/generate-summaries.test.mjs tests/present-agent.test.mjs

[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 2026-09-05T08:47:04.104600Z	fbf4353	PR opened

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