* test: focus assertions on behavioral evidence
Prune redundant and wording-coupled checks while retaining diagnostic, parser, recovery, and cleanup coverage.
* refactor: remove test-only wrappers and duplicate checks
Exercise production operations through test fixtures, remove unused adapters, and keep managed-member uncertainty guidance under its existing owner.
* test: focus process validation on diagnostic facts
* refactor: remove test-only runtime helpers
Move semantic evidence fixture setup out of runtime and remove unused Windows settle recovery helpers while checking configured defaults independently.
* test: focus artifact diagnostics on format facts
* test: verify retained cleanup guidance delivery
Reuse stable-file hashing and exact cleanup leases for target verification, join admitted call workflows before tracer close, and block replacement work while descriptor cleanup remains unresolved. Preserve physical failures, exact cancellation reasons and completed call facts; remove the duplicate reader and AbortError-name heuristic.
Validate real inert-file cleanup controls and controlled tracers through provider and MCP boundaries. No LLDB execution, real OS close-failure or Windows qualification.
Refs #4740
morluto