Brummel
bfe49084de
Per CLAUDE.md tidy-iter at family boundaries. ailang-architect flagged the canonical 'DESIGN.md silent' finding for the entire 19a-arc — same shape as family-20's 20e tidy. Decision 10 schema-additions block gained 'Iter 19b — FnDef.suppress' entry. New subsection 'Advisory diagnostics — Iter 19a-arc' documents the over-strict-mode lint rule (incl. heap-type filter rationale), Severity::Warning introduction, CLI exit-on-Error gating, and the suppress mechanism. New subsection 'Why advisory + suppress instead of inference' pins the three substantive reasons (annotation-states-intent, drift-bremse, LLM-authoring forcing function) so future iters can't reopen the decision without engaging the recorded rationale. Migration plan extended with step 7 covering 19a/19a.1/19b. Decision 10's mandatory-annotation rule is explicitly reaffirmed as unchanged. No code changes. Two architect findings deferred (codegen FnDef fan-out, snapshot-fixture coupling). Data model (MVP) drift predates 19b — separate iter.