Instrumentation from 774d7552a served its purpose — empirically
identified the asymmetric reward cap at experience_kernels.cu:2788
as the inflater (popart min reaching -210336 by F0 ep3 pre-fix).
Fixed in 35db31089; validated by smoke-test-trk72 (PASSED).
Removed:
- reward_chain_diag_reduce_kernel.cu
- 12 per-sample diagnostic buffers in gpu_experience_collector
- kernel parameter threading in experience_kernels.cu
- launcher + reader + mapped-pinned output in gpu_dqn_trainer
- wire-up site + HEALTH_DIAG emit in training_loop
- audit doc section for the transient instrumentation
This brings the worktree back to its pre-instrumentation state on
the SP11 reward chain. Symmetric reward cap fix (35db31089) and
plan_isv symmetric clamps (Commit A) remain.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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