Keep initialized image facts and full source identity separate at the snapshot owner. Stream overlay bytes into original and modified digests, retain format-bounded image bytes, and consume prepared relocation/mapping facts. Preserve completed comparisons, exact cancellation and cleanup retry through descriptor finalization. Keep explicit source refusals as typed primary failures.
Validation: 119 focused parser/comparison/MCP checks, 40 selected provider checks and 14 lifecycle checks passed; static checks, runtime build, discovery and docs checks passed. Twelve small completed source comparisons retained byte-identical full replies. Real Ghidra, large input and full public CLI/MCP performance remain unverified. The separate overlap timing issue #3981 remains open.
Fixes#4770
morluto
2f9b9c48b8