HomeboxSearchProvider used to own the RestClient call and item mapping
directly; pulling it into a shared HomeboxItemClient lets the upcoming
sync pipeline page through the same Homebox items without duplicating
the fetch/mapping logic. ConnectionIdentifiable lets both SearchRequest
and SyncRequest be resolved to a connection by the same client.
HomeboxSearchProviderTest verifies that ConnectionNotFoundException is
thrown when no matching connection exists in the repository.
SearchResponseTest covers the getExtra helper — null extra map, missing
key, and a present key.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
kasun
