CP load-back already handles exact owner-lane deficits before admitting L2->L1 reloads. Treating free-room target misses as synchronous evict work adds avoidable latency to cache-hit requests even when the current load can fit. The load-back path now records the free-room miss as advisory and leaves proactive replenishment to non-critical eviction paths.
Constraint: GSM8K/cache-hit runs are sensitive to CPU/control-path latency during L2->L1 reload.
Rejected: Evict to free-room on every load-back | preserves room but puts synchronous eviction on the latency-sensitive cache-hit path.
Confidence: medium
Scope-risk: moderate
Directive: Exact owner-lane deficits remain mandatory; free-room targets must not become blocking in load-back without ETE latency evidence.
Tested: python -m py_compile on changed runtime files.
Not-tested: ETE latency after this isolated change not rerun in this commit step.
(cherry picked from commit 2f42acba0d748d2d747f0531963267d86c483cde)
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