feat(14.1-02): CloudItemDetailOut schema + resolve_owned_cloud_item_detail + GET detail route
- Add CloudItemDetailOut allowlist schema to backend/api/cloud/schemas.py
(excludes credentials_enc, object_key, version_key, raw provider URLs — T-14.1-03)
- Add CloudItemDetail dataclass and resolve_owned_cloud_item_detail service helper
to backend/services/cloud_items.py (owner-scoped, metadata-only, no byte hydration)
- Add GET /connections/{id}/items/{item_id:path}/detail route to operations.py
with get_regular_user (admin 403), ConnectionNotFound → 404, CloudItemNotFound → 404
- All 8 test_cloud_detail_parity tests now pass (D-05, D-07, D-16, T-14.1-03/04/06)
curo1305
a0d5c1d6c4