X3 Hybrid G4 (Protocol Version 100): Missing Inverter Error Code / Manager Error Code entities

[eltron02]

Hello,
thank you for this excellent integration.
I'm using a SolaX X3 Hybrid G4 (Protocol Version 100). The integration correctly exposes the Run Mode entity (Normal Mode, Fault, Permanent Fault Mode, etc.), but I couldn't find any entities for the inverter's detailed error or alarm codes.
According to the official SolaX Modbus documentation, the inverter provides diagnostic/error registers. Would it be possible to expose these as Home Assistant entities?
This would allow users to create local automations, notifications, and dashboard diagnostics without relying on the SolaX Cloud.
I'd be happy to help with testing on my X3 Hybrid G4 if needed.
Thank you for your great work!