[aicayzer]

Summary

Documents core.collection, the general container type that withmarfa/marfa#2411 adds, so the Catalog lists it and the glossary's collection entry points to it.

Changes

• New page /catalog/collection, with the generated fields and settings, an example item and an example in-collection edge, placed in the Core types group.
• src/generated/: synced from the marfa branch of feat(types): add core.collection, a general container type marfa#2411. Only what that change moves: the catalog (builtin-catalog.json, types.md, a new core.collection.md), GLOSSARY.md and contract-index.json (types/collection added; types/shipped and edges/collection-target changed).
• Glossary page: the collection entry names core.collection beside an album.
• src/lib/docs-map.test.ts: the Core types group includes Collection.

Testing

• pnpm test: 39 files and 709 tests passed.
• pnpm build succeeded, and the prerendered /catalog/collection shows the description, the fields and settings tables (role container) and both examples.
• Not tested: the deployed site.

Notes for reviewers

• Merge after feat(types): add core.collection, a general container type marfa#2411. The generated files came from its branch; a sync from marfa's main once it merges should produce no further change to them.
• Docs only; a standard read is enough.

Checklist

• The title is a scoped Conventional Commit.
• New behavior has a test that was seen failing first, or no test was needed and the reason is above.
• Docs, comments and the contract still say what is true after this change.