Pin the accepted startup, input, frame, resize, shutdown, and native-window order before Slice 8 moves those edges, while deleting only unread duplicate state and test-only GameWindow facades. Co-authored-by: Codex <codex@openai.com>
Freeze host ordering, resource ownership, callback quiescence, partial-startup rollback, and canonical soak evidence as twelve reviewed, bisectable Slice 8 checkpoints. Co-authored-by: Codex <codex@openai.com>
