Capture the verdict (generation gap is "have/have-not", not quality), the
vision/demo/implementation three-layer gap, SOON's verifiable lower bound,
and the user-chosen B+C route: self-built vertical generation engine +
complementary lifecycle positioning + pluggable generation port.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>