Beta — schema may still change; breaking changes are coordinated
with affected customers. Suitable for evaluation, not production
reliance.

Returns a lean per-dataset projection — Dataset-GraphSummary — for
every dataset visible in the environment, plus the foreign-key and
transform-input edges between them. Sorted by id ascending.

Designed to feed the Explore Universe graph in a single call.
Intentionally unpaginated: this endpoint applies a fixed default
filter that excludes monitors (isMonitor) and metric SMA
datasets (isMetricSMA), and does not accept a CEL filter or
expand.

When view-permission filtering is enabled, datasets the caller
cannot view are omitted, as in GET /v1/datasets, and paths
through them are returned in restrictedConnections.

Always returns 200 with meta.totalCount equal to the number of
returned datasets; the -1 sentinel is not used here. Callers
that need to defend against very large environments should cap
on the client side.

For arbitrary filtering or pagination, use GET /v1/datasets
instead. For the lineage neighborhood around a single dataset,
use GET /v1/datasets/{id}/graph.