Compose native utility sessions for the five existing static CLI questions.
Keep ordinary session routing for native runtime observations, and retain
caller-selected environments, target admission, Evidence and cleanup.
Validation: 17 focused files, 97 passed and 2 skipped; npm run check passed.
The three thin Mach-O CLI regressions now pass with macOS native utilities.
No Windows runtime verification or performance measurements performed.
Refs #4555