Add 5 new SiloClient methods for .kc file server integration:
- get_metadata(pn): GET /items/{pn}/metadata
- update_metadata(pn, fields): PUT /items/{pn}/metadata
- patch_lifecycle(pn, state): PATCH /items/{pn}/metadata/lifecycle
- patch_tags(pn, tags): PATCH /items/{pn}/metadata/tags
- resolve_dependencies(pn): GET /items/{pn}/dependencies/resolve
These endpoints are already implemented server-side and needed by the
Create module's silo viewer widgets for live data sync.
Refs: kindred/silo-mod#43
