Expose typed composition content APIs

Parent

Composition review

Estimate: 2 points.

What to build

Expose typed addressing and findSlots, integrating generated SlotReference, SlotPathMap, section/filter types, and augmentation points. Resolve local fallbacks by ID, canonical path, and alias.

Implementation checklist

• Add public addressing/discovery APIs, exports, and generated-type augmentation points.
• Implement fallback lookup using the agreed artifact identity and alias handling.
• Add unit tests with artifact fixtures for application, reference, version, and locale.
• Extend local type tests for literal/runtime references and the repository's existing integration tests where available.

Decisions and references

• RES-07, ART-01, PATH-02, PATH-04, PATH-05.
• LOC-01, LOC-02, LOC-03, LOC-05, LOC-06.
• FIL-01, FIL-02, FIL-09.

Blocked by

• POC-01
• INV-02, INV-05, INV-06, INV-08
• IMP-05, IMP-14, IMP-19