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README/CLAUDE/ARCHITECTURE/OPEN_QUESTIONS/presentation.html: счётчики 71→72, 138→156; группа Assembly +assembly_add_mate; факты AddMateAsync (IMateConstraints3D, FindObjectsByPoint FirstLevel=false, MateType, Valid-проверка); упомянут IntegrationTestBase (per-test очистка). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>