- Admission fails fast with AdmissionInfeasible on infeasible/deadlocked reservations instead of a
10M-iteration busy-spin: no-progress detection in run_to_completion/run_interleaved via a real
progress token, plus feasibility pre-checks (need > pool capacity).
- Compute budget is now a refundable concurrency gate (release() refunds spent), not a
never-refunded lifetime cap that silently deadlocks.
- §7.1: the text-encoder feature CacheKey carries adapter_versions + precision (no stale serve across
te-LoRA stacks); per-component weight versions mean a transformer-only RL weight sync no longer
flushes the frozen text-encoder cache (component-scoped invalidation, not wholesale).
- Interleave gate flags symmetric-empty output instead of passing it vacuously.
- skipped_steps counted only when the override is actually consumed; BatchScheduler wired for round
batch-accounting (metric renamed stepped_units); ResidualCache.get cleanup; stream chunks carry a
latent preview payload; dead progress-vars removed.
- 5 regression tests added for the previously-untested paths. 54 tests pass (pytest + zero-dep runner).
SolitaryThinker
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