CONSUME-AS-DATA-08: Traverse nested subsections

What it demonstrates

SectionView.sections is itself a dual-key group of the nested H3 subsections.

Builds on: CONSUME-AS-DATA-03: Walk a SectionView’s content surface

How it’s done

A TypeScript program against the library API; inline comments show the resulting values and behavior.

const c = contract({ body: sections({ allowUnknown: true }, [
  optional(section("Post-mortem", { children: sections({ order: "strict" }, [
    section("Acceptance criteria coverage"),
    section("What worked"),
  ]) })),
])});

const pm = c.read(src, { path: "T-AB12.md" }).body.postMortem;
pm.sections.whatWorked.text();              // camelCase key
pm.sections.section("What worked").text();  // exact-heading accessor — same view

Surfaces exercised

• section() children: sections()
• nested SectionView.sections dual-key group
• optional()