docs: record E574 slot-loss null result

[Tyler-R-Kendrick]

Summary

• record the capped E574 slot-component-loss treatment and exact null result versus E573
• retain the scratch checkpoint locally with explicit no-sync/non-ship status
• add committed-run and checkpoint-roster persistence coverage for the deployed control plane

Verification

• 48-step train completed in 76.23s with max_wall_minutes=3 and 170s process cap
• focused persistence test passed
• full control-plane test module passed (92 tests)
• version stamps and repository policy passed
• git diff --check passed

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Project	Deployment	Actions	Updated (UTC)
slm-training	Ready	Preview, Comment	Jul 20, 2026 3:41am

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 02260c7c-d014-4c28-817e-4473e0be1d37

📥 Commits

Reviewing files that changed from the base of the PR and between 685a506 and e057277.

📒 Files selected for processing (7)

• README.md
• docs/MODEL_CARD.md
• docs/design/checkpoint-bucket.md
• docs/design/iter-e574-e569-slotloss2-20260720.json
• docs/design/iter-e574-e569-slotloss2-20260720.md
• docs/design/quality-experiment-matrix.md
• tests/test_web/test_control_plane.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch agent/e574-e569-slotloss2

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