v1.9.3

• fix: inverter model and serial number are now read from the device on
  startup and shown in the HA device card, replacing the hardcoded
  "SMILE-M5-S-INV / SMILE series" string.
• fix: integer sensor registers (dispatch mode, EMS version,
  fault/warning codes, period hours/minutes, etc.) no longer display
  with a spurious .0 decimal suffix.
• fix: power sliders (force charge/discharge/export/import, dispatch
  power, max export power) now clamp to the configured Inverter AC
  Limit instead of always allowing up to 20 kW.