feat: Add AC power, battery management, and diagnostic sensors for Hinen

[thiagofigueiro]

This expands the Hinen H5000 profile with 18 new sensors covering AC metering, battery management, thermal monitoring, and firmware diagnostics.

Picks-up where I left from #198 (comment)

AC group:

• Grid Power (signed, registers [26,25]) - total AC active power
• Power Factor (register 57, with 10000 offset formula)
• AC Charge Power (registers [107,106]) - grid-to-battery AC charging

Battery group:

• Battery Combined Power (signed, registers [150,149]) - net battery power
• Battery Current (register 164) - BMS-measured battery current
• BMS Max Charge/Discharge Current (registers 166, 167)
• BMS Gauge Remaining and Full Charge Capacity (registers 168, 169)
• BMS Cycle Count (register 173)

Diagnostics group (new):

• IPM Temperature (register 133) - internal power module temperature
• LLC Temperature (register 134) - LLC resonant converter temperature
• Fan Speed (register 135)
• Bus1/Bus2 Voltage (registers 130, 131) - DC bus voltages
• Fault Maincode (register 147) - main fault code with lookup table

Info group:

• Master/Slave DSP Versions (registers 341, 342)

Also dixed a typo in the existing "Today Energy Export" sensor
(descripton -> description).

Tested on a Hinen H5000-EU Single-Phase Hybrid
(Model: S05U01T00E0FP0500B0500). All sensors reporting live data.

[thiagofigueiro]

Hi, @davidrapan 👋. Hope you've been well.

I have a lot more sensors coming up for the Hinen 5000.

Would you prefer a single big PR or several smaller ones?