Own every borrowed PartArray frame across callbacks, version presentation state across appearance rebinding, reject recursive phase consumption, and preserve static MotionDone when only a stale visual pose is discarded.
Port CPartArray::UpdateParts minimum-count behavior: preserve the prior visual and rigid transforms for setup parts absent from a short authored AnimFrame, including the initial hydrated rest pose.
Co-Authored-By: OpenAI Codex <codex@openai.com>
Move final live part composition, exact-incarnation schedule handoff, MotionDone binding, and presentation diagnostics out of GameWindow while preserving the retail frame order. Reject stale schedule and completion ABA at the new owner boundary.
Co-Authored-By: OpenAI Codex <codex@openai.com>
