Add opt-in retained inventory and WASM Evidence views with exact nested output contracts and a small static WASM descriptor. Preserve old complete CLI/MCP workflows, producer choices, original authenticated Evidence and cleanup ownership.
Validated with real public applications, genuine old Evidence migration, 123 focused assertions, 11 synchronized description checks and 42 installed-package WABT cases. Detailed generated experiment JSON stays outside the final tree; concise findings and reproduction inputs remain. Main-existing completion/package CI failures are separately attributed and left unchanged.
Refs #2016
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>