Add isolated CPU residency performance probe without changing AR

tools/conditioning-perf-lab-v1/README.md

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+# Independent CPU residency performance probe
+
+This is a bounded engineering experiment authorized after the user asked to try
+reducing repeated process startup. It does not replace or modify registered AR,
+its timing/seed/dynamics, any frozen model, or any existing scientific artifact.
+No GPU worker or new brain simulation is launched, and AR interim learning
+outputs are not inspected. Input selection uses the two named, already sealed
+AQ engineering fixtures, not outcomes from the ongoing experiment.
+
+## Fixed experiment
+
+Serial sequence: M, N, M, N_D0, N_frozen, M_D0, M. M is the mechanical fresh
+parent; N is the natural light fresh engineering trial, whose actual prior
+overlay comes from an AP learned snapshot. The three explicitly derived command
+controls change only D=0/frozen over the same sealed events. These are not new
+conditioning trials and do not alter the underlying files or install weights.
+
+Compare fresh original epoch postprocessing against the exact same function
+called repeatedly in a dedicated worker. Preserve all original hashes and
+checkpoint validation; do not cache mutable neural state or delta. Every output
+is independently checked by the original fresh-process CPU validator. A second,
+separate resident validator is a clearly identified prototype: it has a new
+schema/source identity, caches only SHA-checked module identity, and preserves
+the original numerical and input-checking body.
+
+Require exact four-file SHA identity, raw delta dtype/shape/byte identity,
+complete update-receipt/trace-digest identity, and identical scientific verifier
+fields. Compare mechanical and natural cases back to their original AQ outputs.
+Check D0/frozen byte identity, and source/consumed-input hashes before and after.
+Each task ACK is distinct from a true worker process exit. Both resident workers
+must exit zero as observed by their parent; every fresh validator must exit zero.
+
+One active CPU task at a time, one numerical thread, low scheduling priority,
+CUDA hidden and uninitialized, at most seven rows, 180-second child-response
+limit and 900-second experiment limit. Fail closed, preserve partial outputs,
+no automatic retry. New output root must be an empty temporary directory outside
+the registered experiment/model trees. No full-history rescan is claimed.
+
+## Interpretation limits
+
+Report cold and warm timings separately. Fresh reference and resident treatment
+use the same unchanged inputs, original function body and complete validation.
+The comparison excludes GPU/brain work, AP outer wrapper and AR ledger overhead.
+It cannot establish whole-run speedup, GPU correctness, sequence generality,
+learning success or readiness to replace AR. Nonzero prior delta is included,
+but only two source trajectories and one compartment are covered. Broadening to
+different compartments or a persistent GPU runtime requires a new independent
+equivalence test and authorization before replacing a registered workflow.