Returns a fleet and, by default, the full details of every PV system, inverter, and storage
asset that belongs to it. Use this when you need device-level information (names, vendors,
capacities) without making separate calls per asset.

Metadata behavior

• Disabled by default. Pass ?includeMetadata=true to include full asset details under metadata.
• When enabled, the response includes a metadata object alongside the existing ID arrays.
• metadata.storages may be an empty array if storage details are temporarily unavailable.