Performs embeddings-based searches across search-configured datasets.
query - a search query
--limit, -l Limit number of search results. Default: 10.--cache-control <value> Control whether the results cache is used for searches. Values: cache (default), no-cache.--model <string> Model to use for search.--endpoint <endpoint> Specifies the remote Spice instance HTTP endpoint (e.g., http://localhost:8090).--headers <KEY:VALUE> Custom HTTP headers in format Key:Value (can be specified multiple times).-o, --output <format> Output format: table (default) or json.