Folds the approved design into the sibling combined-doc format and adds the
phased, bite-sized TDD implementation plan: normalization docs (T1-2), library
scaffold + 4 public types via TDD (T3-7), pack + register (T8-9). Co-located
.tasks.json for executing-plans resume.
Approved brainstorming design for the Config + validation normalization pass
(Tier-2 candidate in upcoming.md). Scope: startup options validation only,
single package ZB.MOM.WW.Configuration, Approach A (lightweight base + rule
primitives + DI/startup helpers). Full pass = components/configuration/ docs +
built library.
Joseph Doherty