Update charger

Updates charger properties (requires owner or service permissions).


Charge Current Settings:
The maxChargeCurrent and minChargeCurrent properties should generally not be used. These are intended for special cases where an external party must override the Zaptec load balancer, which may cause unexpected behavior.

It is recommended to control the charging system using the installation’s AvailableCurrent setting instead.

Offline Current/Phase Override:
Use only when charging stations must not automatically optimize offline current or phases.

• Set OfflineChargeCurrent to -1 to enable automatic allocation.
  
• Any value between 0 and 32 overrides the automatic setting. null is ignored.
  
• Set OfflineChargePhase to 0 (Phases.None) to enable automatic allocation.
  
• Any other valid value will override the automatic setting.
  
  Ensure that the total of all overridden values in an installation does not exceed the fuse limit.
  
  Meter Value Interval:
  Controls how often periodic energy data is reported.
  
  The recommended default is 30 minutes. Setting this to 0 disables periodic reporting, affecting both session data and signed meter values.