feat: generative toxigen eval with silent exit detection

feat(eval): add LEM_NAMES filter for per-worker model selection

fix: isolate per-target failures + temp park family until phase 2

fix(cron): add ~/.local/bin to PATH in lem-eval.sh

fix(worker): continuous loop + cron as watchdog, not scheduler

fix(probe): system-python capability check via ollama binary

fix(workers): capability probe + (name,type,quant) triple iteration

refactor: partition by type (mlx|gguf), drop owner hostname field

feat: initial LEM-Eval scaffold — target-driven 8-PAC runner