Ln 780 Bootstrap Verifier

After your bootstrap process spins up a new project, this coordinator runs the full verification gauntlet: builds everything, runs your test suites, launches containers, and checks health endpoints. It delegates the actual work to three specialized skills (ln-781 for builds, ln-782 for tests, ln-783 for containers) and aggregates everything into a single report. The workflow is strictly sequential and fail-fast on builds, which is the right call. You get configurable timeouts and the option to skip phases, plus it does sensible pre-flight checks for Docker before attempting container work. It's the difference between "I think setup worked" and having proof with error logs when it didn't.