feat(cms): add schema for Section component (background, blur hash, children)

[Kneesal]

Background

Need a Section wrapper component that controls background color and blur hash for a region and takes items as children, so editors can define distinct sections with consistent styling and optional placeholder imagery.

Expected outcome

• A Section component exists with attributes: background color (or theme), blur hash (for image placeholder), and repeatable/dynamic children (items).

Acceptance criteria

• Section component JSON schema added in CMS.
• Attributes include background color (or enum) and blur hash (string).
• Component accepts items or children as repeatable components.
• Component registered and available; GraphQL regenerated if contracts change.

Possible solution(s)

1. Add components/sections/section.json with backgroundColor, blurHash (string), items (component, repeatable).
2. Optional: backgroundImage relation plus blurHash for placeholder while loading.

References

• apps/cms/src/components/sections/

• apps/cms/schema.graphql

• Parent: epic(cms): Experience schema for Easter-style watch page #175 Epic A (CMS)

• Related (web implementation): feat(web): add Section component (background, blur hash, children) #155

[Ur-imazing]

Execution plan (completed)

Branch: feat/145-section from main

Steps completed:

1. Section component – Added apps/cms/src/components/sections/section.json with:

   • backgroundColor: enumeration (default, light, dark, primary)
   • blurHash: string, optional
   • content: dynamic zone with sections.media-collection, sections.promo-banner, sections.info-blocks, sections.cta (sections.text omitted — not on main yet; add when feat(cms): add schema for Text component #144 merges)

2. Register in Experience – Added sections.section to sections dynamic zone in apps/cms/src/api/experience/content-types/experience/schema.json.

3. GraphQL/codegen – Regenerated apps/cms/schema.graphql (Strapi) and packages/graphql client via pnpm run codegen. pnpm run check:generated passes.

Commits:

• feat(cms): add Section component schema and register in Experience
• chore(graphql): regenerate after Section schema

PR: #200 — Resolves #145.