TDD plan covering GpuReplayBuffer, proportional + rank-based GPU sampling, priority scatter updates, async loss readback, trainer integration, OOM fallback, and distribution correctness tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
TDD plan covering GpuReplayBuffer, proportional + rank-based GPU sampling, priority scatter updates, async loss readback, trainer integration, OOM fallback, and distribution correctness tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>