Read the V8 limit and used heap together for initial admission, checkpoint
decode and remaining result capacity. Remove the duplicated second heap/RSS
observation while preserving every reserve and ceiling.
Make the controlled parent-capacity fixture internally consistent and test
both unchanged usage and a later one-MiB collection. Real worker/transfer
coverage still retains static/module facts and declines only the large graph.
Assisted-by: Reimu (gensokyo-skills:reimu-incident-triage)
Assisted-by: Kogasa (gensokyo-skills:kogasa-surprise-testing)
Match memory failures to the exact source identity instead of graph ordering. Preserve CLI parse, file-evidence, partial-result, later-source and unchanged-input checks across valid memory-pressure outcomes. Use a controlled parent heap envelope with a real owned analyzer to prove module retention and graph rejection independently of host GC timing.
Validation: full check:ci passed; 17 focused tests passed, with the final 4 changed tests rerun successfully. Independent test-strength and isolation review passed. The earlier hosted failure exposed missing graph-only fields; its exact alternate memory stage was not captured.
morluto