Three bugs in the GPU experience collection hot path:
1. gpu_batch_to_experiences() had hardcoded state_dim=43 but the CUDA kernel
outputs states at the ALIGNED dimension (56 with OFI, 48 without). After
sample 0, every replay buffer entry had corrupted state vectors — the
network was learning from garbage data.
2. GPU path never called monitor.track_reward(), so mean_reward was always
reported as 0.0 in epoch logs despite the agent generating real rewards.
3. Action tracking was double-counted (direct array write + track_action_by_exposure),
inflating diversity metrics by 2x. Consolidated into single bounded call.
Also adds missing app.kubernetes.io/component label to job-template.yaml
so Prometheus training-pods scrape job discovers training pods.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
809295dc5f