Optionalopts: CameraOptionsPan to center a single node WITHOUT changing zoom. No-op if absent.
Optionalopts: CameraOptionsPan (WITHOUT changing zoom) so the model-space point (x, y) sits at
the viewport center. The minimap uses this to recenter on a clicked
or dragged location; pass animate: false for drag responsiveness.
Optionalopts: CameraOptionsReset the view (fit the whole graph at the default padding).
Optionalopts: CameraOptions
Zoom-to-subgraph: fit the viewport to the given nodes (and their edges are not added; pass node ids). Missing ids are ignored; an empty/all-missing set is a no-op.