[Allocator 3/5 — after #71] Qualify physical engine lifecycles with real inference

[deehw]

Stacked follow-up to #71. Adds an operator command and durable owner-only report for physical Ollama, ComfyUI, and vLLM lifecycle qualification: immutable inventory/fetch, warm, ownership, native readiness, real inference/workflow output, activity probe, drain/stop, and scoped cleanup. Tightens Ollama overwrite safety and native errors, and fixes vLLM child reaping. Machine A physically passed Ollama with a disposable SmolLM2 135M canary; the canary was removed. The same harness correctly caught the existing gpt-oss:20b tensor size-overflow failure without deleting it. 318 focused tests pass. Base will be retargeted to main after #71 merges.

[deehw]

Qualification update: physical vLLM lifecycle passed on D with immutable Qwen2.5-Coder-0.5B-Instruct: fetch, bounded launch, ownership, readiness, real OpenAI-compatible inference returning GRID, activity probe, stop, and artifact cleanup. Physical testing found and fixed GPU-memory bounding, context/eager controls, venv/CUDA toolchain activation, and an explicit FlashInfer fallback. Ollama was also physically qualified on A. Remaining before Ready: physical ComfyUI qualification; no ComfyUI service is currently available on A/C/D.

[deehw]

Physical ComfyUI qualification completed on Forge machine A (MacBook Pro, MPS) with the installed Z-Image bundle.

Result: PASS. The CLI proved native inventory and artifact identity, warm/load, ownership, readiness, a real 256x256 one-step image workflow, exact output collection, an idle activity probe, and native /free memory release. Real inference took 63.89s and returned 156,361 encoded output units. Report: ~/.grid/allocator-qualification/reports/20260903-040255-3f82faed8470d770.json.

The first physical run found two real integration defects (root WebSocket URL and selection of an unrelated empty legacy output directory). Both are fixed in b60db20, with focused regressions passing (2/2) and qualification/orchestrator suites passing (13/13). The second full physical run passed end to end.