Add support for DO1 series inverter type

Author: rosenrot00

custom_components/solax_modbus/plugin_growatt.py

@@ -9657,6 +9657,8 @@ async def async_determineInverterType(self, hub: Any, configdict: dict[str, Any]
             invertertype = HYBRID | GEN4 | X1  # MOD 4000 TL3-XH Hybrid, 2 MPPT
         elif seriesnumber.startswith("DPS"):
             invertertype = HYBRID | GEN4 | X3  # MOD 5000 TL3-HU Hybrid, 2 MPPT
+        elif seriesnumber.startswith("DO1"):
+            invertertype = HYBRID | GEN4 | X3 | MPPT3  # MOD 12000 TL3-HU Hybrid, 3 MPPT
         elif seriesnumber.startswith("PYL"):
             invertertype = HYBRID | GEN4 | X3  # MOD 5000 TL3-XH Hybrid, 2 MPPT
         elif seriesnumber.startswith("JCM"):