Why: The authorized r0.2 trial had an unsupported stage inference, while replay exposed two separate diagnostic-control defects. Evidence: Exact paid-run files and tool-imported receipts, independent REPLAY, and Backend RED-to-GREEN/full-suite checks. Impact: U3 quality remains FAIL; the new Backend code has no paid-model acceptance and all PRs stay draft. Refs: U3 quality implementation plan r0.2, Task 6
ui
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