Retrieve a single shading scene with full scene JSON
scene_id is the workspace-scoped integer identifier for the shading scene.sceneJson geometry payload, unlike the list endpoint which omits it.returnshading — attach aggregated shading factors by sun position.returntableshading — attach per-table shading factors grouped by table index.returnmodel — attach the historical Daly-compatible model payload with tracker parameter reference.false. When omitted, the response contains only the core scene record.404 if the scene does not exist in the current workspace.